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Western gull - Wikipedia


The western gull (Larus occidentalis) is a large white-headed gull that lives on the west coast of ... Despite being a well-known bird species on the West Coast of the US, it is of some ... It has a...

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.



The importance of taking phylogenetic effects into account during comparative .... The phylogeny shows that gulls with a red spot on the lower mandible fall into ...

Seagull's red dot? (Page 1) - Birds - Ask a Biologist Q&A


As I understand, it is used during feeding nestlings. The chicks peck at the red dot and stimulate the parent to regurgitate some delicious ...

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 ...

Classic behavioural studies flawed : Nature News


Mar 24, 2009 ... Nobel prizewinner took short cuts to show that the way gulls feed is instinctive. ... At the time, the dominant idea in animal behaviour was that learning was all- important. ... Adult gulls have a red spot on their lower bill.

Herring Gull, Identification, All About Birds - Cornell Lab of Ornithology


Herring Gulls are large gulls with hefty bills and robust bodies. ... with long yellow bill; Gray back, bright white head and underparts; Red spot near tip of lower bill ...

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.

BirdNote: Solving the Mystery of the Herring Gull's Red Spot


Oct 3, 2014 ... Mary McCann explains how a tiny red spot on the tip of a Herring Gull's beak is a visual trigger ... http://birdnote.org/show/little-red-spot-gulls-bill .... on your canine with the most significant share attending healthcare payments.

Science Explorations: Journey Into Space: The Behavior Patterns of ...


Newly hatched herring gulls know by instinct to peck at the red spot on the bill of their parents in order to be fed. Pecking becomes more accurate as the baby ...

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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  ...

Seagull facts and information - The Seagull Who Was Afraid To Fly


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 ...