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Larus cachinnans? (1 Viewer)

ody

Well-known member
Hi , all! I took this photo in August this year in Haarlem, Holland.
Is it a juvenile Larus cachinnans?
 

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Hi Ody,

I think this is a Herring Gull Larus argentatus. Although cachinnans occurs in northern Europe, it's much less common than Herring Gull.
 
Andrew Whitehouse said:
Hi Ody,

I think this is a Herring Gull Larus argentatus. Although cachinnans occurs in northern Europe, it's much less common than Herring Gull.

When it is so. This adult is also a Herring Gull? Photo taken at the same place the same time.
 

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Hi. I think the first one is a juvenile Lesser Black-backed Gull (Larus fuscus).

The adult bird should be a Herring gull or possibly a Yellow-legged Gull (Larus michahellis).
 
Hi all.

The juvenile bird could in fact be a LBBG, although all it´s plumage characters speaks for Herring. There are some juv. LBBG which does not show the typical all dark greater coverts:

http://cyberbirding.uib.no/gull/lbbg/juv_04.php

http://www.gull-research.org/lbbg1cy/e15aug.htm

and the bill size, primary projection (long) and tertial pattern is also indicative of LBBG.
Tail pattern seems not so dark of what can be seen from here, which indicate Herring.

The adult gull is not a Caspian or Yellow-legged Gull. Upperparts to pale for Yellow-legged and orbital ring colour is wrong, should be red or reddish, typical argentatus/argenteus yellowish. Caspian usually has a darker iris, not yellowish orbital ring and head shape is more in line with Herring. Although variable, bill shape is a bit to blunt-tipped:

http://www.artportalen.se/artportalen/gallery/images/swe/birds/2006/large/16924.JPG

JanJ
 
From my point of view, very probably a juvenile Lesser black-backed Gull (I personnaly hate all those abbreviated bird names) and almost surely a Herring Gull for the reasons given + all dark bill and shape of scapulars + late moult of adult bird.
 
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