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Black-headed Gull
Black-headed Gull ranges across Eurasia but is replaced in North America by the similar Bonaparte's Gull. A rarity in California, this is the first record for Santa Cruz County. First noted 27 December 2023 at the mouth of Aptos Creek by David Sidle. Today we found it north of the creek at Seacliff State Beach. It is an adult in winter plumage lacking the dark hood. Formerly included in the genus "Larus," it bears a strong resemblance to Brown-hooded Gull (Chroicocephalus maculipennis) of the South American southern coasts. The two were considered conspecific by Hellmayr. Brown-hooded has a slightly darker mantle, narrower dark subterminal band on its primaries, more dark at the bases of its outermost primaries, and distinct white primary tips.
Location
Seacliff State Beach, Aptos, California, USA
Date taken
11 January 2024.
Scientific name
Chroicocephalus ridibundus
  • Wow
Reactions: John Nihon
Beautiful detailed shot of this lovely gull Joseph, TFS!
Interesting seeing someone seeing it as a rarity as they are all over the place here!
 

Media information

Category
North America
Added by
jmorlan
Date added
View count
746
Comment count
2

Image metadata

Device
Canon Canon PowerShot SX70 HS
Aperture
ƒ/6.5
Focal length
247.0 mm
Exposure time
1/500 second(s)
ISO
100
Filename
Black-headedGullIMG_2044.jpg
File size
267.1 KB
Date taken
Thu, 11 January 2024 2:10 PM
Dimensions
1024px x 744px

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