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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Dark underwings gull (1 Viewer)

satyachil

Tally ho!
Am currently in Tenerife and am seeing many gulls with dark underwings and white bodies head inland in the evenings. Not successful in capturing a photo yet.
What could be potential candidates?
There are many lesser/greater black backed gulls but the birds i refer to dont look like juveniles of lbbg or gbbg.
 
By far the most common gull in Tenerife should be the Atlantic race of Yellow-legged Gull. I think Lesser Black-backed can be numerous too in the winter but GBBG will be scarce, only present in small numbers, usually single birds. Audouin's I think are also around. The dark underwings you see may be Black-headed Gull?
 
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