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European herring gull


The European herring gull (Larus argentatus) is a large gull One of the best known of all gulls ... The bill is yellow with a red spot and there is a ring of bare yellow skin around the pale eye. Th...

Why Do Gulls Have a Red Spot on Their Bills? | Audubon


Oct 7, 2013 ... This story comes to you through a partnership between Audubon and BirdNote, a show that airs daily on public radio stations nationwide.

function of coloured bill tips, stripes and spots in breeding gulls


(i.e. a red tip or spot), whereas smaller-billed species have uniform bills. We therefore ... The importance of taking phylogenetic effects into account during.

Seagull facts and information - Steven P. Wickstrom website


The word Laridae is from the Greek word meaning “ravenous sea bird.” The term .... The bill is yellow with a red spot near the tip of the lower mandible. The back ...

Identification of Pacific Northwest Gulls · University of Puget Sound


Comments on Identification of Certain Adult Gulls of the Pacific Northwest .... Larger gulls have relatively thicker bills, an important aid in judging size, especially ... Caution: All of the larger gulls with red bill spots, as their bill changes color with ...

Classic behavioural studies flawed : Nature News


Mar 24, 2009 ... Nobel prizewinner took short cuts to show that the way gulls feed is ... Herring gull chicks instinctively peck at red spots on their parents' bills to beg for food. ... idea in animal behaviour was that learning was all-important.

Ring-billed Gull, Identification, All About Birds - Cornell Lab of ...


Familiar acrobats of the air, Ring-billed Gulls nimbly pluck tossed tidbits from on high. ... look closely, as some other species have black or red spots on the bill.

A Second Look at “Seagulls”: Tips for ID | All About Birds


Jul 15, 2010 ... The most important basic keys to identifying gulls are size, shape, and color pattern. ... streaky; hooded gulls typically show a dark spot or smudge on the head. ... The hooded birds with red bills are probably Laughing Gulls if ...

Identification Keys and Tips - "Typical" Gulls


Keys and Tips for Identifying "Typical" Gulls - Differentiating between Ring-billed, California, ... in the winter can attract significant numbers of gulls, including the rarities shown on this page. ... Bill: Yellow, with black and red spots on lower bill.

ADW: Larus argentatus: INFORMATION


The most important habitat requirements are the nearby presence of a food ... Herring gulls have yellow bills with a red spot on the lower mandible and pink or  ...

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Herring Gull - | The Wildlife Trusts


Swooping in and stealing your chips, the herring gull is the 'typical seagull' and is a ... This red spot spurred one of the classic studies in animal behaviour in the 1950s, ... Having seen gull chicks peck at their parents' bills to encourage them to  ...

Pecking the Red Dot: Herring Gull Myth or Fiction? - Acronym ...


Mar 26, 2009 ... Tinenberg found that the baby gulls will peck at a red spot more ... "One of Nikolaas Tinbergen's most important contributions is that he has ...

In defence of seagulls | Stephen Moss | Environment | The Guardian


Aug 18, 2009 ... Given that the seagulls were around long before the town council, this does ... Just watch a gull soaring gracefully above the quayside and you'll see what I mean. ... Among his discoveries was that the red spot on the lower part of the herring ... on the island of Anglesey, filming a gull colony with Bill Oddie.