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~ a celebration of nature

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Tag Archives: black-headed gulls

Freezing

09 Saturday Jan 2021

Posted by sconzani in birds, weather, winter

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birding, black-headed gulls, British birds, Cosmeston Lakes Country Park, frozen lake, wintry weather

We’ve been experiencing sub-zero overnight temperatures over the past week or so and, some days, when the cloud or fog is particularly thick and dense, the daytime temperatures have also been very low. Still, I was surprised to see, on Thursday’s walk, when freezing fog had rolled in off the Bristol Channel, that the west lake at Cosmeston had partly frozen over. The birds looked a little confused by the conditions as well.

210109 freezing

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On a grey Bay day

04 Saturday Nov 2017

Posted by sconzani in birds, nature, walks

≈ 8 Comments

Tags

birding, birds, birdwatching, black-headed gulls, British birds, Canada geese, Cardiff Bay, Coot, Cormorant, fog, Great Crested Grebe, little grebe, long-tailed tit, Moorhen, Mute swan, Pied wagtail, starling, walk around Cardiff Bay

171104 1 Cardiff Bay fog

Thick fog hung over Cardiff Bay as I set out on a round-the-bay circuit yesterday morning and, though the fog thinned as the day went on, the day remained grey. Still, never let it be said that grey is boring. Birds there were aplenty (and wildflowers, too … but that’s for tomorrow’s post).

171104 2 Cormorant
171104 2 Little grebes

This cormorant was enjoying a successful spot of fishing in the old Penarth dock area, though it was slim pickings for the three Little grebes around the corner in the River Ely.

171104 3 Pied wagtail (1)
171104 3 Pied wagtail (2)
171104 3 Pied wagtail (3)
171104 3 Pied wagtail (4)

All around the Bay, on almost every man-made structure and clump of rocks near the water, Pied wagtails bobbed, wagged and ‘chisicked’.

171104 4 Coot
171104 4 Moorhen

Coots were even more numerous, and an occasional Moorhen prospected along the shoreline.

171104 5 Cormorant171104 5 Flock of Canada geese

As I was watching this Cormorant drying its wings, our peace and tranquillity was interrupted by the loud honking of a large skein of Canada Geese flying in from the west.

171104 6 Long-tailed tits
171104 6 Starlings and gull

Where concrete and buildings dominate the shoreline and there’s a notable absence of trees, the birds have adapted and perch on tree-like things.

171104 7 Great crested grebe
171104 7 Mute swan

I saw perhaps half a dozen Great crested grebes around the Bay: I always admire how long they can stay underwater when fishing. Mute swans were more numerous. They are birds of such contrasts, looking anything but decorous when flaunting their glorious white bottoms as they feed, yet the picture of elegance when preening.

171104 8 Black-headed gull (3)

The most abundant came at the end of my walk. It was standing room only for the Black-headed gulls on the Barrage.

171104 8 Black-headed gull (1)
171104 8 Black-headed gull (2)

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Gulls as kleptoparasites

24 Tuesday Jan 2017

Posted by sconzani in birds, nature, parks

≈ 2 Comments

Tags

bird feeding habits, birding, birdwatching, black-headed gulls, Coot, gulls stealing food, kleptoparasitism, Roath Park Lake, Tufted duck

Some time ago at Roath Park Lake I was intrigued to notice Black-headed gulls using Coots as their personal fishers, and I have since noticed this behaviour between the gulls and Tufted ducks as well, though I haven’t yet seen them using this feeding method with the other water bird species at the lake.

170124-coot-and-gull

These gulls eat different food from the coots and ducks – gulls eat insects, worms, scraps, etc whereas the ducks and coots are mostly vegetarian, though the tufties will also eat some insects – so, presumably, the gulls aren’t actually stealing food the other birds would eat themselves.

170124-gull-and-tufted-duck

The ducks and coots dive down for food, while the gulls float patiently waiting for them to surface. When they do, the gulls paddle over to see if there’s anything interesting for them to steal. The coots and tufties don’t seem to object to the gulls, even though they’re doing all the work. I guess they would be doing the diving anyway and, if the gulls aren’t actually stealing their food, then they’ve nothing to lose. The official term for creatures that take the food other creatures have caught, prepared or collected is kleptoparasitism, hence my title.

When researching this post, I located an excellent article that goes into much more detail than I have about this and similar bird behaviour: ‘Food usurpation by waterfowl and waders’ by Juan A. Amat can be found here.

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White- & brown-headed black-headed gulls

23 Tuesday Feb 2016

Posted by sconzani in birds, nature, nature photography

≈ 4 Comments

Tags

birding, birds, birdwatching, black-headed gulls, British birds

160223 black headed gull

The scientific name for the black-headed gull is Chroicocephalus ridibundus: Chroicocephalus is a combination of the Greek choria meaning colour and cephalus meaning head, and ridibundus is derived from the Latin ridere which means laugh. So, its head colour is laughable?

Well, someone was certainly having a laugh when they named it the black-headed gull. In the summertime – or, to be more precise, during the breeding season, its head may look black but is actually a dark chocolate brown. At the end of the breeding season, the feathers moult, leaving the bird’s head almost completely white, except for two small dark patches behind the eyes on either side of its head.

Along with many other things in the natural world, these gulls are confused by this year’s mild winter weather and have begun their change to breeding plumage. These photos, taken over the last couple of weeks, show that change.

160223 black headed gull (1)
160223 black headed gull (2)
160223 black headed gull (3)
160223 black headed gull (4)
160223 black headed gull (5)
160223 black headed gull (6)
160223 black headed gull (7)
160223 black headed gull (8)
160223 black headed gull (9)
160223 black headed gull (10)

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The black-headed gull duo

06 Saturday Feb 2016

Posted by sconzani in birds, nature, nature photography

≈ 8 Comments

Tags

birding, birds, birdwatching, black-headed gulls, British birds, gulls, Roath Park Lake

Roath Park Lake, in Cardiff, last week …

160208 black headed gull song (1)

A Gull: ‘Is she still there?’
Gull Y: ‘Yep.’
A Gull: ‘What’s she doing?’
Gull Y: ‘Just pointing that black thing at us. Why do they do that?’

160208 black headed gull song (2)

A Gull; ‘I dunno. Ignoring them doesn’t seem to work either.’
Gull Y: ‘Shall we give her something to look at then?’
A Gull: ‘Righto. We could do with some practice.’
Gull Y: ‘Yeah. Let’s fly down by that tree and give her a blast of our new number.’

160208 black headed gull song (3)

A Gull: ‘The skies are alive with the sound of gull song.’
Gull Y: ‘With songs we have sung for a million years.’

160208 black headed gull song (4)

A Gull: ’The lakes fill my heart with the sound of gull song.’
Gull Y: ‘My heart wants to eat every fish it sees.’

160208 black headed gull song (5)

A Gull: ‘Well, a little appreciation would be welcome.’

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About me

sconzani

sconzani

I'm a writer and photographer; researcher and blogger; birder and nature lover; countryside rambler and city strider; volunteer and biodiversity recorder.

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