Larus heermanni: Heermann’s Gull–The Race RocksTaxonomy

ASHeermans-Gull-Heermann’s Gulls , (Larus heermanni) start turning up at Race Rocks in July.  On July 6 of this year a record number , 574 Heermann’s gulls were observed. This  was a notable increase from the 21 recorded a few days earlier The winter plumage is quite dark compared to the summer breeding plumage. They migrate here up from the breeding grounds in Mexico.




Ryan Murphy took this photo in 2010 showing features of the flight feathers.

On 574 Heermann’s gulls today which is a notable increase from the 21 recorded on Friday.



Domain Eukarya
Kingdom Animalia
Phylum Chordata
Sub-Phylum Vertebrata
Class Aves
Order Charadriiformes
Family Laridae
Genus Larus
Species heermanni
Common Name: Heermann’s Gull,

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