Sunday 11 September 2022

Clark's Grebe (Aechmophorus clarkii)

OTHER NAMES: N/A
Latin Etymology: Aechmophorus ("spearman") clarkii ("Clark's")

Adult Clark's Grebe (subspecies A. c. clarkii) at Berkeley, California - August 2022

Featured Subspecies: Aechnophorus clarkii clarkii
Weight: 1400g  /  Length: 63cm  /  Wingspan: 61cm
NO UK STATUS IUCN Red List: Least Concern

A close relative of the Western Grebe, it has a history where it was been intermitantly been regarded as a subspecies of the latter, although this appears to have been now resolved due to distinct if subtle differences and a low rate of interbreeding where their ranges overlap. In the field they can be separated from Western by the fact their eye is surrounded by white plummage, while in Western it falls within the black cap.

Related Species:
Order: Podicipediformes
Family: Podicipedidae
Genus: Aechmophorus
SUBSPECIES: A. c. clarkii, A. c. transitionalis

 - Sighting Locations -

UNITED STATES 
A widepsread species in California and breeding in a number of other Western states.
 - CALIFORNIA 2022 TRIP: Seen at Berkeley and Monterey

 Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto

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