Birds
File:Heermann's Gull (Larus heermanni) RWD.jpg

Heermann's Gull

Heermann's Gull

100
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Spotted
Heermann's Gull is a distinctive medium-sized gull of the Pacific coast of North America, unique for its dark grey body, white head (in breeding plumage), and red bill with a black tip.
Where to spot
Breeds primarily on Isla Rasa in the Gulf of California, Mexico. Disperses widely along the Pacific coast of North America, from British Columbia to Guatemala.
How to spot
Look for its striking dark body and white head (breeding plumage). Its red bill with a black tip is a key feature. Often found around piers, beaches, and fishing boats.
When to spot
Best observed during the non-breeding season (late summer to spring) along the Pacific coast, following its northward and southward dispersal from its breeding grounds.
File:Heermann's Gull (Larus heermanni) RWD.jpg
File:Larus heermanni13.JPG
File:Larus heermanni 461798991.jpg
File:Larus heermanni 462606470.jpg
File:Larus heermanni 475034581.jpg
File:Larus heermanni California.JPG
File:Larus heermanni ad 1st-w.jpg
File:Larus heermanni at Richardson Bay.jpg
File:Larus heermanni on Seal Beach pier 1.jpg
File:Heermann's Gull (Larus heermanni) RWD.jpg
Credits: Wikimedia Commons
File:Larus heermanni13.JPG
Credits: Wikimedia Commons
File:Larus heermanni 461798991.jpg
Credits: Wikimedia Commons
File:Larus heermanni 462606470.jpg
Credits: Wikimedia Commons
File:Larus heermanni 475034581.jpg
Credits: Wikimedia Commons
File:Larus heermanni California.JPG
Credits: Wikimedia Commons
File:Larus heermanni ad 1st-w.jpg
Credits: Wikimedia Commons
File:Larus heermanni at Richardson Bay.jpg
Credits: Wikimedia Commons
File:Larus heermanni on Seal Beach pier 1.jpg
Credits: Wikimedia Commons
This gull nests almost exclusively on Isla Rasa in the Gulf of California, Mexico, with nearly 95% of the global population breeding on this single island.
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