Steppe Gull - barabensis

(last update: 8-9-2014 )
Coordinator:
Mars Muusse (Netherlands)

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barabensis 1CY July
barabensis 1CY Aug
barabensis 1CY Oct
barabensis 1CY Nov

barabensis 2CY Jan
barabensis 2CY Febr
barabensis 2CY March
barabensis 2CY July
barabensis 2CY Nov

barabensis 3CY June
barabensis 3CY Nov

barabensis sub-ad Jan
barabensis sub-ad June
barabensis sub-ad Nov

barabensis ad Jan
barabensis ad March
barabensis ad May
barabensis ad June
barabensis ad July
barabensis ad Nov
barabensis ad Dec

barabensis-type 2CY, February 26 2001, Sittra parking lot, Bahrain.

Barabensis class I 1st winter or cachinnans.

In March, some cachinnans seem to have moulted a few median coverts to 2nd generation, although the moult progresses slowly. But more common is the replacement of 2nd generation for 3rd generation grey adult-like scapulars. Such scapulars (often grey centred, brown-grey at the tip and with a shaft streak are lacking in this individual, and might be a clue for identifying it as barabensis. Note the bleached exposed primaries and coverts. Mystery gull in the background is a Greater Black-headed Gull (L.ichtyaetus).