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1
00:00:03,670 --> 00:00:06,507
'A bird's life in Wales
must be wonderful.
2
00:00:06,507 --> 00:00:09,301
'A life made in heaven.
3
00:00:12,888 --> 00:00:15,140
'Anything but.
4
00:00:17,226 --> 00:00:21,271
'Birds have to work from dawn
to dusk to find food and water.
5
00:00:21,271 --> 00:00:23,690
'If they don't, they die.
6
00:00:24,775 --> 00:00:27,444
'They have to battle
with the elements too.
7
00:00:28,487 --> 00:00:33,867
'Survival, especially during
winter, is always difficult.
8
00:00:37,204 --> 00:00:40,499
'And during the spring,
they're busy raising families.
9
00:00:42,084 --> 00:00:44,503
'They also have to put up with us
10
00:00:44,503 --> 00:00:48,423
'and find a way of surviving
in our artificial landscape.'
11
00:00:48,423 --> 00:00:53,804
In this series, I'll be
finding out what a bird's life
is really like in Wales.
12
00:00:53,804 --> 00:00:58,725
I'm going to be discovering the
vast array of species we have here.
13
00:00:58,725 --> 00:01:01,812
And I'll be probing
into their secret lives.
14
00:01:28,297 --> 00:01:31,967
'A young swallow
is waiting to be fed.
15
00:01:34,553 --> 00:01:39,266
'It'll be one of the last feeds
he'll get from his parents
16
00:01:39,266 --> 00:01:43,270
'before he begins a mammoth journey
south to Africa.
17
00:01:43,270 --> 00:01:49,193
'He spent the Welsh summer
at this farm near Colwyn Bay.
18
00:01:54,990 --> 00:01:58,327
'A few weeks ago, he was
tucked away in a nest
19
00:01:58,327 --> 00:02:03,874
'with his brothers and sisters,
all vying for the biggest mouthful.
20
00:02:07,294 --> 00:02:11,548
'They grew up watching and
listening to human activity.
21
00:02:13,926 --> 00:02:16,887
'And other animals sharing
the accommodation.
22
00:02:20,599 --> 00:02:25,187
'Experience has taught the adults
that this is a safe environment.
23
00:02:25,187 --> 00:02:28,774
'Like many other urban birds,
24
00:02:28,774 --> 00:02:33,987
'these swallows have adapted
to live side by side with people.
25
00:02:51,255 --> 00:02:57,427
'In this programme, I'll be looking
at the different ways birds make
use of the landscape we create,
26
00:02:58,595 --> 00:03:03,684
'the structures we build,
and the materials we discard.
27
00:03:16,280 --> 00:03:20,200
'Birds are so much at home
in our towns in Wales,
28
00:03:20,200 --> 00:03:22,244
'we've got used to them.
29
00:03:22,244 --> 00:03:26,415
'We tend to ignore
each other largely.
30
00:03:34,548 --> 00:03:39,595
'These two male blackbirds
are fighting over a piece
of park in Newtown
31
00:03:39,595 --> 00:03:43,974
'and the dispute
is hardly noticed by anyone.
32
00:03:48,729 --> 00:03:51,440
'Early morning in
Roath Park, Cardiff.
33
00:03:54,151 --> 00:03:59,031
'A goldcrest is busy looking
for insects amongst the ivy.
34
00:04:05,537 --> 00:04:08,999
'Most of us don't realise
that such a beautiful bird
35
00:04:08,999 --> 00:04:11,877
'can be a real towny.
36
00:04:14,588 --> 00:04:18,091
'Beside the main road
in the west end of Pwllheli,
37
00:04:18,091 --> 00:04:22,179
'a fantastic wildlife show
is provided by herons.
38
00:04:22,179 --> 00:04:25,641
'They've set up a nesting colony.'
39
00:04:27,017 --> 00:04:30,604
It's really unusual to be eye level
with nesting herons like this,
40
00:04:30,604 --> 00:04:32,481
especially in the middle of a town.
41
00:04:32,481 --> 00:04:36,109
Usually, they nest right at
the tops of the highest trees,
42
00:04:36,109 --> 00:04:38,862
but here, they're
low down in willows.
43
00:04:38,862 --> 00:04:42,616
You can see how early it is.
The pussy willows are out.
44
00:04:42,616 --> 00:04:46,495
They're actually flowering now.
It's the beginning of April.
45
00:04:46,495 --> 00:04:52,292
Some of these are feeding chicks,
which means they laid eggs
in the middle of February.
46
00:04:52,292 --> 00:04:56,421
I like herons.
They're kind of primordial birds.
47
00:04:56,421 --> 00:05:01,176
They look as if they belong
1,000 years ago, not now.
48
00:05:01,176 --> 00:05:04,221
They've got this prehistoric
look about them.
49
00:05:04,221 --> 00:05:06,390
They're such great birds to watch.
50
00:05:06,390 --> 00:05:09,309
It's incredible to think
that huge birds like that,
51
00:05:09,309 --> 00:05:12,479
they are four and a half feet tall,
they nest in trees.
52
00:05:12,479 --> 00:05:17,234
I always expect them to nest in
amongst reed beds, but they don't.
53
00:05:17,234 --> 00:05:19,570
They nest high up
in trees like this.
54
00:05:20,821 --> 00:05:23,699
What's fantastic about these herons
55
00:05:23,699 --> 00:05:26,410
is that you can watch
the whole breeding season
56
00:05:26,410 --> 00:05:28,537
in full, uninterrupted view.
57
00:05:32,875 --> 00:05:36,545
'I particularly like
their courtship ritual.
58
00:05:38,547 --> 00:05:42,801
'Every time one of the adults
returns to the nest,
they greet each other.
59
00:05:46,263 --> 00:05:51,143
'And remember, you can see this view
right in the middle of Pwllheli.
60
00:05:55,189 --> 00:05:59,401
'The chicks are one of the most
dishevelled looking birds
you'll ever see.
61
00:06:02,529 --> 00:06:07,451
'Herons have one of the longest
breeding periods of any Welsh bird.
62
00:06:07,451 --> 00:06:11,455
'This is probably one of the best
entertainments shows in Wales
63
00:06:11,455 --> 00:06:15,459
'and the performance lasts four
months between March and June.
64
00:06:18,754 --> 00:06:23,258
'The views are exceptional because
the herons are used to people.
65
00:06:26,470 --> 00:06:30,265
'But the best bird shows of all
are often even nearer home.
66
00:06:30,265 --> 00:06:33,310
'It's in the back garden.
67
00:06:34,811 --> 00:06:39,942
'This wonderful one is at
Pentrebeirdd near Welshpool.
68
00:06:42,736 --> 00:06:47,157
'It's a fabulous collection
of flowers, trees and shrubs.
69
00:06:47,157 --> 00:06:51,078
'A great setting for
people and birds alike.'
70
00:06:53,705 --> 00:06:57,209
When we usually think
about man-made landscapes,
71
00:06:57,209 --> 00:07:01,046
we think about a habitat
that's quite poor for birds.
72
00:07:01,046 --> 00:07:04,007
But it's not always the case.
You take gardens now.
73
00:07:04,007 --> 00:07:05,926
There's an apple tree here.
74
00:07:05,926 --> 00:07:09,555
The birds will come in when
they're ripe and eat the apples.
75
00:07:09,555 --> 00:07:13,851
Flowers, shrubs and bushes.
They'll attract the insects.
Food for the birds.
76
00:07:13,851 --> 00:07:16,603
They'll nest in there,
they'll shelter in there.
77
00:07:16,603 --> 00:07:18,814
Every garden, virtually,
has got a lawn
78
00:07:18,814 --> 00:07:21,441
where they can feed
on earthworms and grubs.
79
00:07:21,441 --> 00:07:25,612
And we're talking here about birds
like blackbirds and robins,
80
00:07:25,612 --> 00:07:29,783
who would have originally
been woodland birds.
81
00:07:29,783 --> 00:07:34,830
But they've found in our gardens
a habitat that's even better.
82
00:07:43,297 --> 00:07:47,259
'These woodland birds
have found the perfect place.
83
00:07:47,259 --> 00:07:49,428
'Their equivalent of paradise,
84
00:07:49,428 --> 00:07:53,724
'where they'll find all they need
in one rich habitat.
85
00:08:06,361 --> 00:08:10,365
'And birds occasionally make clever
use of the plants that we grow.
86
00:08:14,912 --> 00:08:19,124
'These are the gardens of Gregynog
Hall near Newtown in Powys.
87
00:08:19,124 --> 00:08:23,337
'Foreign conifer trees have been
planted beside the main lawns.
88
00:08:23,337 --> 00:08:29,301
'Although trees like these have only
appeared on the Welsh landscape
during the past 200 years,
89
00:08:29,301 --> 00:08:33,680
one local bird has already taken
advantage of the new opportunities
90
00:08:33,680 --> 00:08:37,142
that these exotic plants provide.'
91
00:08:38,685 --> 00:08:42,481
This is a great tree. It's a
giant redwood or a Wellingtonia.
92
00:08:42,481 --> 00:08:45,567
Exactly the same as
the big giant redwoods
93
00:08:45,567 --> 00:08:47,611
'you have over in California.
94
00:08:47,611 --> 00:08:51,657
'This is only about 150 years old,
so it's got a long way to go yet.
95
00:08:51,657 --> 00:08:56,119
One of the unique things about it
is this thick, soft bark here.
96
00:08:56,119 --> 00:08:59,706
A common woodland bird takes
advantage of this bark
97
00:08:59,706 --> 00:09:03,669
to roost overnight on these
freezing cold winter nights.
98
00:09:03,669 --> 00:09:05,963
What it does, it digs a little hole,
99
00:09:05,963 --> 00:09:10,551
tucks itself in there until the
early morning and then flies off.
100
00:09:10,551 --> 00:09:15,222
But if we want to see it, we've
got to come back here after dark.
101
00:09:40,414 --> 00:09:43,458
And this is it. It's a treecreeper.
102
00:09:43,458 --> 00:09:47,546
The bird has dug himself a little
hole into that soft bark,
103
00:09:47,546 --> 00:09:51,216
knowing full well he's going
to be insulated all around.
104
00:09:51,216 --> 00:09:54,845
His face and his belly
and feet have gone right in
105
00:09:54,845 --> 00:09:58,682
and all that sticks out
are his dense back feathers.
106
00:09:58,682 --> 00:10:03,061
He also knows that any passing owl
is never going to see him
107
00:10:03,061 --> 00:10:07,566
because those feathers blend in
perfectly with the surrounding bark.
108
00:10:07,566 --> 00:10:11,653
'And that's one of the
cosiest roosting sites
109
00:10:11,653 --> 00:10:14,406
'that any bird could possibly have.
110
00:10:21,705 --> 00:10:27,461
'Buildings provide an endless
variety of possibilities
for birdlife.
111
00:10:32,549 --> 00:10:35,511
'Jackdaws use chimneys as
alternative nesting sites
112
00:10:35,511 --> 00:10:37,304
'to rocky cliffs and tree holes.
113
00:10:45,270 --> 00:10:49,566
'During winter, chimneys also have
the added bonus of a source of heat.
114
00:10:50,734 --> 00:10:55,781
'You often see jackdaws
warming themselves up
on a cold winter's day.
115
00:10:55,781 --> 00:10:58,784
'These are at Betws-y-Coed.
116
00:11:07,793 --> 00:11:10,754
'Pigeons nest in nooks and crannies.
117
00:11:11,797 --> 00:11:14,758
'These have discovered
useful gullies
118
00:11:14,758 --> 00:11:16,885
'in the walls of Raglan Castle.
119
00:11:22,808 --> 00:11:27,271
'Before people, wild pigeons
nested on coastal cliffs.
120
00:11:31,358 --> 00:11:33,861
'But holes in buildings
probably provide
121
00:11:33,861 --> 00:11:36,071
'better protection for their chicks.
122
00:11:40,033 --> 00:11:42,828
'All over Wales,
birds use buildings.
123
00:11:42,828 --> 00:11:46,081
'High up on the Black Mountain
in West Wales,
124
00:11:46,081 --> 00:11:48,709
'house martins are
assembling mud nests
125
00:11:48,709 --> 00:11:51,211
'under the eaves
of a waterworks building.
126
00:11:51,211 --> 00:11:55,507
'Naturally, they too would
build them on cliffs.
127
00:11:55,507 --> 00:11:58,969
'Here in the uplands, this
building presents the martins
128
00:11:58,969 --> 00:12:01,221
'with an ideal nesting site.
129
00:12:01,221 --> 00:12:06,643
'An opportunity that
otherwise wouldn't exist
in this open landscape.
130
00:12:20,741 --> 00:12:24,912
'Derelict buildings also provide
very useful habitats for birds.
131
00:12:25,954 --> 00:12:29,166
'Because they're usually
in a ruinous state,
132
00:12:29,166 --> 00:12:31,877
'they're easy for
the birds to access
133
00:12:31,877 --> 00:12:34,630
'and there are plenty
of places to hide.
134
00:12:36,256 --> 00:12:39,843
'This building is on farmland
near Abergavenny.'
135
00:12:43,013 --> 00:12:46,600
There's a lovely old barn here.
I love exploring old barns.
136
00:12:46,600 --> 00:12:51,730
In a corner of the field,
abandoned, surrounded by nettles,
137
00:12:51,730 --> 00:12:56,193
sheltered by trees, and one end
is completely covered in ivy.
138
00:12:56,193 --> 00:12:58,529
Birds love places like this.
139
00:12:58,529 --> 00:13:04,451
They go in there to shelter
from the wind, from the rain,
some from the sun even.
140
00:13:04,451 --> 00:13:07,621
Some will nest in here too.
It's a great place to nest.
141
00:13:07,621 --> 00:13:09,540
So many nooks and crannies.
142
00:13:09,540 --> 00:13:14,461
But we associate old barns like
this with one bird in particular.
143
00:13:15,796 --> 00:13:17,714
'It's a barn owl.
144
00:13:17,714 --> 00:13:21,760
'They naturally nest in tree holes
and cracks in cliffs
145
00:13:21,760 --> 00:13:23,887
'and a few still do.
146
00:13:25,597 --> 00:13:28,183
'But this family
is using a nest box
147
00:13:28,183 --> 00:13:31,353
'which has been placed
especially for them in this ruin
148
00:13:31,353 --> 00:13:34,857
'to help sustain the population
of barn owls in Wales.
149
00:13:34,857 --> 00:13:39,987
'They're being filmed with an
infrared camera in complete darkness
150
00:13:39,987 --> 00:13:42,114
'to avoid any disturbance to them.
151
00:13:43,532 --> 00:13:47,536
'There are five chicks
and at around eight weeks,
152
00:13:47,536 --> 00:13:50,747
'they're just about old enough
to leave the nest.
153
00:13:53,292 --> 00:13:57,671
'It's clearly been a good
season for them, as all the
chicks are big and healthy.
154
00:13:59,798 --> 00:14:02,634
'There must have been
plenty of food around
155
00:14:02,634 --> 00:14:04,928
'in the surrounding countryside.
156
00:14:04,928 --> 00:14:09,474
'In a bad year, only the strongest
survive and are preferentially fed.
157
00:14:11,476 --> 00:14:15,564
'The weakest perish.
But all is well this year.
158
00:14:21,904 --> 00:14:25,699
'One of the parents, probably
the male, returns with a vole.
159
00:14:26,992 --> 00:14:30,829
'He gives it to the female,
who then takes it to the chicks.
160
00:14:33,582 --> 00:14:35,292
'For hundreds of years,
161
00:14:35,292 --> 00:14:38,879
'farmers have gone out of their way
to accommodate barn owls
162
00:14:38,879 --> 00:14:42,174
'as they help keep rodents
at bay on their land.
163
00:14:51,683 --> 00:14:54,853
'On Mumbles Pier,
across the bay from Swansea,
164
00:14:54,853 --> 00:14:59,650
'gulls have also taken advantage
of a nesting opportunity
165
00:14:59,650 --> 00:15:02,194
'provided by an
artificial structure.
166
00:15:02,194 --> 00:15:04,071
'These are kittiwakes
167
00:15:04,071 --> 00:15:08,116
'and they're nesting on the pier
during late spring and summer.
168
00:15:10,077 --> 00:15:12,663
'There must be 100 or more of them.'
169
00:15:19,878 --> 00:15:22,005
I don't know anywhere else in Wales
170
00:15:22,005 --> 00:15:25,175
where you can get this close
to nesting kittiwakes.
171
00:15:25,175 --> 00:15:27,302
Kittiwakes are usually shy birds,
172
00:15:27,302 --> 00:15:31,139
but not Mumbles Pier
kittiwakes obviously!
173
00:15:31,139 --> 00:15:35,435
If you look at it from the birds
point of view, this is a sea cliff.
174
00:15:35,435 --> 00:15:41,441
It's isolated, it's safe, the seas
around here are full of fish.
175
00:15:41,441 --> 00:15:46,029
They can gather their nesting
material from the sea,
usually seaweed,
176
00:15:46,029 --> 00:15:48,574
although one or two of these
have been inland
177
00:15:48,574 --> 00:15:51,243
because I can see moss
on some of the nests.
178
00:15:51,243 --> 00:15:56,165
If anything, this is actually
better than some of the
wild kittiwake colonies
179
00:15:56,165 --> 00:15:59,042
I've seen in parts
of Pembrokeshire and Anglesey
180
00:15:59,042 --> 00:16:03,172
because there, they're exposed
to some storms and huge waves.
181
00:16:03,172 --> 00:16:07,050
Here, you're in Swansea Bay,
so you're perfectly safe.
182
00:16:07,050 --> 00:16:10,804
And what a backdrop! Look at that.
The city of Swansea over there.
183
00:16:10,804 --> 00:16:15,017
If I was a kittiwake, this is
where I'd come to nest, I think.
184
00:16:17,311 --> 00:16:21,607
'Kittiwakes first nested here
nearly 20 years ago.
185
00:16:23,317 --> 00:16:26,570
'They've gradually learnt
that this is a safe spot.
186
00:16:28,280 --> 00:16:31,742
'And generations of chicks have
returned each year as adults,
187
00:16:31,742 --> 00:16:34,620
'increasing the population
that nest here.
188
00:16:36,580 --> 00:16:39,082
'They get their name, kittiwake,
189
00:16:39,082 --> 00:16:43,170
'from the constant "kitti-wake,
kitti-wake" call they make.
190
00:16:45,797 --> 00:16:48,967
'Over winter,
they'll stay out at sea.
191
00:16:48,967 --> 00:16:52,429
'But during the spring,
they arrive to build their nests.
192
00:16:53,722 --> 00:16:56,141
'And use all sorts of material.
193
00:16:59,353 --> 00:17:02,773
'They only stop building once
the chicks have hatched,
194
00:17:02,773 --> 00:17:06,360
'presumably because with the
arrival of hungry youngsters,
195
00:17:06,360 --> 00:17:09,696
'they'll have little time
to keep up with the nest work.
196
00:17:09,696 --> 00:17:14,701
'The male constantly feeds
the females to get them
in good condition to lay
197
00:17:14,701 --> 00:17:17,579
'and she'll usually lay two eggs.
198
00:17:19,164 --> 00:17:22,626
'Compared to sea cliffs,
the pier offers added protection,
199
00:17:22,626 --> 00:17:27,130
as the hustle and bustle
of visitors keeps predators,
such as foxes, away.
200
00:17:28,799 --> 00:17:32,636
'And with many people around,
those who would do them harm
201
00:17:32,636 --> 00:17:35,097
'are less likely to disturb them.
202
00:17:45,023 --> 00:17:47,609
'In the port of Holyhead
on Anglesey,
203
00:17:47,609 --> 00:17:50,028
'another sea bird
has taken advantage
204
00:17:50,028 --> 00:17:52,406
'of a landscape created by people.
205
00:17:59,580 --> 00:18:02,082
'It's a setting that
couldn't be further
206
00:18:02,082 --> 00:18:05,460
'from our understanding
of a natural habitat.
207
00:18:06,503 --> 00:18:08,964
'This is a black guillemot.
208
00:18:13,093 --> 00:18:15,679
'They're beautiful birds
and quite rare.
209
00:18:18,682 --> 00:18:22,436
'They usually nest in cracks
and crevices in sea cliffs.
210
00:18:22,436 --> 00:18:26,982
'And currently, there's only one
natural colony in the whole of Wales
211
00:18:26,982 --> 00:18:29,109
'and that too is on Anglesey.
212
00:18:35,949 --> 00:18:38,494
'These, together with
a pair at Fishguard,
213
00:18:38,494 --> 00:18:40,996
'are the only black
guillemots in Wales
214
00:18:40,996 --> 00:18:44,124
'that nest in an
artificial landscape.
215
00:18:45,459 --> 00:18:47,377
'There are two pairs here
216
00:18:47,377 --> 00:18:50,964
'and they're using holes in the
harbour wall as nesting sites.
217
00:18:50,964 --> 00:18:56,887
'The holes are deeper and safer
than those that they'll
find on the coast.
218
00:18:59,640 --> 00:19:01,934
'The location is perfect for them.
219
00:19:01,934 --> 00:19:05,604
'There's plenty of food in the
harbour to feed their chicks.
220
00:19:05,604 --> 00:19:08,941
'This one has caught
a small flatfish.
221
00:19:19,493 --> 00:19:24,456
'Birds make use of all sorts
of unnatural structures.
222
00:19:28,210 --> 00:19:34,466
'The artificial landscapes created
in our urban surroundings
are particularly great habitats
223
00:19:34,466 --> 00:19:37,970
'for birds who've hatched
and grown up in the town.'
224
00:19:40,931 --> 00:19:45,018
It's incredible just how adaptable
some of our wildlife is.
225
00:19:45,018 --> 00:19:48,438
I'm right in the middle
of Cardiff here
226
00:19:48,438 --> 00:19:51,441
and yet a pair of coots
have decided to nest here.
227
00:19:51,441 --> 00:19:55,320
The nest is just against
this metal grill over there.
228
00:19:55,320 --> 00:19:58,115
A pile of twigs with
a bit of plastic in it.
229
00:19:58,115 --> 00:20:00,450
Look at this from a coot's
point of view.
230
00:20:00,450 --> 00:20:02,369
It's got everything they need.
231
00:20:02,369 --> 00:20:05,664
It's got a lot of food.
I can see the vegetation in here.
232
00:20:05,664 --> 00:20:09,543
There'd be a lot of invertebrates in
there as well. It's got a nest site.
233
00:20:09,543 --> 00:20:12,254
And if there is any danger,
they can scuttle away
234
00:20:12,254 --> 00:20:16,925
and hide underneath this vegetation
right along the banks.
235
00:20:16,925 --> 00:20:18,844
In some ways, it's even better
236
00:20:18,844 --> 00:20:23,390
than a pond out in the
countryside for them.
237
00:20:25,559 --> 00:20:30,063
'The nest is big and they're
still finishing it off.
238
00:20:31,398 --> 00:20:33,317
'Coots dive for their food.
239
00:20:34,359 --> 00:20:38,405
'They also go underwater to collect
some of the nesting material.
240
00:20:39,531 --> 00:20:42,201
'This is a perfect site for them.
241
00:20:44,661 --> 00:20:48,123
'Naturally, they would choose
an area of river, lake or pond
242
00:20:48,123 --> 00:20:51,376
'where there is an obstruction
caused by dead wood.
243
00:20:51,376 --> 00:20:56,340
'Or an area of water where
there's deep plant growth
holding firm to the bottom.
244
00:20:58,091 --> 00:21:01,094
'Here, the anchor point
is provided by a metal grill,
245
00:21:01,094 --> 00:21:04,348
'which has become stuck
to the canal bed.
246
00:21:05,349 --> 00:21:10,062
'This plastic bottle may well be
used to provide extra support.
247
00:21:12,272 --> 00:21:14,566
'It'll eventually be a giant stack
248
00:21:14,566 --> 00:21:17,903
'and they'll defend it
very aggressively.
249
00:21:19,988 --> 00:21:24,910
'Although in the middle of town, the
nest is reasonably safe from people,
250
00:21:24,910 --> 00:21:27,329
'as few will venture into the water.
251
00:21:29,373 --> 00:21:34,086
'The only danger here
is from predatory birds,
such as gulls and herons.
252
00:21:36,255 --> 00:21:40,717
'When the female has laid her eggs,
and there could be as many as 10,
253
00:21:40,717 --> 00:21:43,887
'she'll usually cover them
with weed to hide them.
254
00:21:47,266 --> 00:21:52,604
'Birds often use artificial
landscapes in ingenious ways.
255
00:21:54,398 --> 00:21:58,110
'This is the River Leri
near the Dyfi Estuary.
256
00:22:02,531 --> 00:22:07,619
'The river is crossed by the
Cambrian railway, which joins
Machynlleth with Aberystwyth.
257
00:22:10,664 --> 00:22:14,168
'Crows are a common sight
throughout Wales.
258
00:22:14,168 --> 00:22:17,337
'But these are resourceful crows.
259
00:22:20,007 --> 00:22:24,720
'They've discovered that the
railway track has many uses.
260
00:22:27,723 --> 00:22:31,351
'They collect mussels
at low tide on the estuary.
261
00:22:42,362 --> 00:22:47,784
'Their beaks, however,
are not the correct shape
to prize open the shells.
262
00:22:47,784 --> 00:22:51,163
'But they've worked out
a solution to the problem.
263
00:22:58,003 --> 00:23:00,797
'They drop the shells
on to the railway track.
264
00:23:06,053 --> 00:23:09,890
'This behaviour is not only
a measure of intelligence,
265
00:23:09,890 --> 00:23:14,436
'but also shows how birds
learn how to improvise
266
00:23:14,436 --> 00:23:16,563
'and use whatever we build.
267
00:23:35,249 --> 00:23:40,128
'A watching kestrel seems
impressed by the activity.
268
00:23:40,128 --> 00:23:43,048
'Pretty much everything
we build can be used
269
00:23:43,048 --> 00:23:45,467
'by one species of bird or another.
270
00:23:46,677 --> 00:23:51,723
'And birds also use
what we throw away.
271
00:23:53,267 --> 00:23:57,521
'It's 6:00am on a beautiful
June morning.
272
00:23:57,521 --> 00:24:00,941
Cardiff is waking up.
273
00:24:07,447 --> 00:24:11,702
'Gulls have been active
since first light.
274
00:24:13,662 --> 00:24:17,249
'They're patrolling the streets,
looking for food.
275
00:24:17,249 --> 00:24:22,963
'It's an activity that you'll only
see on a big scale during summer.
276
00:24:22,963 --> 00:24:28,635
'In the Riverside and Grangetown
areas of the town, it's bin day.
277
00:24:28,635 --> 00:24:34,474
'Today, all the scavenging
efforts of the gulls
will be concentrated here.
278
00:24:41,481 --> 00:24:46,195
'They're mainly lesser
black-backed gulls.
279
00:24:47,988 --> 00:24:51,950
'There are also herring gulls
with light grey wings.
280
00:24:53,702 --> 00:24:57,498
'Sometimes, a lesser black-back
is boss of the bag.
281
00:25:00,959 --> 00:25:03,378
'Sometimes, a herring gull.
282
00:25:05,172 --> 00:25:09,718
'But one gull always
seems to dominate others
once a bag is opened.
283
00:25:15,599 --> 00:25:19,811
'This herring gull is making this
clear with his warning display.
284
00:25:23,315 --> 00:25:27,027
'Gulls are not popular with the
council or with the residents.
285
00:25:27,027 --> 00:25:29,446
'They cause havoc on the streets.
286
00:25:30,822 --> 00:25:33,575
'Love them or hate them,
and it's mostly hate,
287
00:25:33,575 --> 00:25:36,787
'all they're doing is adapting
to an environment
288
00:25:36,787 --> 00:25:39,665
'that gives them what they want.
289
00:25:39,665 --> 00:25:41,792
'And bags of it.
290
00:25:45,212 --> 00:25:48,465
'And this is very important
late spring.
291
00:25:54,847 --> 00:25:58,559
'These gulls are eating
far more than they need.
292
00:25:59,601 --> 00:26:02,938
'And there's a good reason
why they're being so greedy.
293
00:26:04,398 --> 00:26:06,608
'It's the breeding season.
294
00:26:07,651 --> 00:26:11,196
'And the city also has excellent
gull nesting sites.
295
00:26:15,868 --> 00:26:20,622
'On an industrial site
near the centre,
a flat roof is an ideal base,
296
00:26:20,622 --> 00:26:23,375
'a short flight away
from the feeding zones.
297
00:26:32,551 --> 00:26:37,431
'The gulls take off and land
with food for their chicks
from dawn to dusk.
298
00:26:41,768 --> 00:26:43,896
'With their gullets full,
299
00:26:43,896 --> 00:26:47,941
'they return and regurgitate
the food for their chicks.'
300
00:26:55,949 --> 00:27:01,079
There must be 50, maybe even 60
pairs of gulls on this flat roof.
301
00:27:01,079 --> 00:27:04,500
They're mainly
lesser black-backed gulls.
302
00:27:04,500 --> 00:27:08,337
There are a few herring gulls
dotted here and there as well.
303
00:27:08,337 --> 00:27:14,009
This flat roof is exactly
like an off-shore island, like
a beach on an off-shore island.
304
00:27:14,009 --> 00:27:15,761
It's really safe.
305
00:27:15,761 --> 00:27:18,764
No foxes, no cats, no dogs
can get up there.
306
00:27:18,764 --> 00:27:21,558
They're kind of like urban vultures.
307
00:27:21,558 --> 00:27:26,146
These gulls in the middle of Cardiff
are really intelligent birds
308
00:27:26,146 --> 00:27:30,526
because they know when it's bin day
over in the middle of the city.
309
00:27:30,526 --> 00:27:33,904
They'll rip up your bins and
they'll get the food out of that.
310
00:27:33,904 --> 00:27:40,744
'Each gull pair will have its own
small patch of space on this
artificial nesting site.
311
00:27:40,744 --> 00:27:44,748
'Although the chicks
are safe from predators,
312
00:27:44,748 --> 00:27:48,001
'they're not safe from other gulls.
313
00:27:49,920 --> 00:27:52,422
'If they venture
from their own patch,
314
00:27:52,422 --> 00:27:57,302
'there's always a possibility
that other adults will kill them.
315
00:28:01,223 --> 00:28:06,895
'Gulls are only in the city in big
numbers during the breeding season,
between April and August.
316
00:28:08,522 --> 00:28:12,651
'The rest of the time, they'll go
elsewhere in search of food.
317
00:28:12,651 --> 00:28:18,490
'They don't provide one of the most
beautiful views of the bird world,
318
00:28:18,490 --> 00:28:21,451
'but you have to admire
their intelligence.
319
00:28:39,219 --> 00:28:42,681
'Birds are very special
living creatures.
320
00:28:42,681 --> 00:28:46,143
'They can do many things
that we can't.
321
00:28:52,107 --> 00:28:57,029
'And because of the range of
habitats that we have in Wales,
322
00:28:57,029 --> 00:28:59,490
'we have a fantastic
range of species
323
00:28:59,490 --> 00:29:03,160
'which have become specialists
on their own patch.
324
00:29:16,507 --> 00:29:21,678
'In my next Secret Life of Birds,
I'll be looking at the various ways
325
00:29:21,678 --> 00:29:26,391
'different bird species have
adapted to the Welsh landscape
326
00:29:26,391 --> 00:29:31,688
'and how the birds of different
designs cope with life in Wales.'
327
00:29:52,960 --> 00:29:55,045
Subtitles by Red Bee Media Ltd
328
00:29:56,296 --> 00:29:58,382
E-mail subtitling@bbc.co.uk
29837
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