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Checklist S37725601

 
Location
Lezíria Grande de Vila Franca de Xira--Poça do Cardal, Vila Franca de Xira County, Lisboa, PT ( Map ) ( Hotspot )
Date and Effort
Fri Jun 16, 2017 12:31 PM
Protocol:
Traveling
Party Size:
2
Duration:
2 hour(s), 49 minute(s)
Distance:
13.4 mile(s)
Observers:
Dominic Mitchell , Helder Cardoso List
Submitted from eBird for iOS, version 1.5.140
Species
32 species total
33
White Stork
22
Gray Heron
13
Purple Heron
21
Little Egret
73
Cattle Egret (Western)

Common, numerous species which was counted systematically

74
Glossy Ibis
7
Eurasian Spoonbill
4
Eurasian Marsh-Harrier
1
Black Kite
1
Eurasian Moorhen
3
Collared Pratincole
1
Audouin's Gull

Very worn first-summer individual actively moulting in second-generation inner primaries, photographed in gull flock on rice fields alongside many Lesser Black-backed and several Yellow-legged Gulls. First seen by Helder Cardoso, who drew attention to its smaller size than congeners. When I examined my photos subsequently, I believed the structure and white-headed, 'snouty' appearance favoured Audouin's over e.g. a worn and bleached first-summer Mediterranean Gull, while the brown greater coverts eliminated Common Gull (with Ring-billed ruled out on a number of features). The 'piano-key' tail pattern appeared somewhat unusual and not to my knowledge a typical feature of any likely species, but subsequent discussion of this bird on the Western Palearctic Gulls Facebook group generated a link to images of an Audouin's with a similar tail pattern (see http://www.elisanet.fi/hj.koskinen/2kvLaraud20080627.html). In summary, no single feature of this bird is wrong for Audouin's, while all potential confusion species can be ruled out on one or more characters visible in the accompanying photos.

© Dominic Mitchell

Average Quality
Age:
Immature

© Dominic Mitchell

Average Quality
Age:
Immature

© Dominic Mitchell

Average Quality
Age:
Immature

© Dominic Mitchell

Average Quality
Age:
Immature

© Dominic Mitchell

Average Quality
Age:
Immature

© Dominic Mitchell

Average Quality
Age:
Immature
3
Yellow-legged Gull

Second-calendar-year birds present among large numbers of Lesser Black-backed Gulls (others possibly overlooked)

120
Lesser Black-backed Gull
1
Common Swift
2
Eurasian Kestrel
7
Greater Short-toed Lark
2
Eurasian Skylark
5
Crested Lark
4
Bank Swallow
5
Barn Swallow
6
African Reed Warbler
1
Great Reed Warbler
18
Zitting Cisticola (Zitting)
2
European Stonechat
21
Western Yellow Wagtail

Subspecies iberiae

2
Corn Bunting
10
Eurasian Linnet
81
House Sparrow
1
Eurasian Tree Sparrow
10
Yellow-crowned Bishop
2
Common Waxbill
 

Are you submitting a complete checklist of the birds you were able to identify?

Yes