Saturday 22 October 2022

22nd October 2022 Unst SE2 Overcast

Another day when the wind direction felt promising but it largely failed to deliver with a late Yellow Wagtail the highlight.

Norwick: Woodcock, Yellow Wagtail, Robin, 10 Fieldfare, 10 Redwing, 2 Song Thrush, Lesser Whitethroat, 5 Blackcap, Chiffchaff, Yellow-browed Warbler, 8 Goldcrest, 2 Chaffinch, & Snow Bunting.

NorthDale: Robin, 7 Fieldfare, 10 Redwing, Blackcap & Greenland Redpoll, 

Burrafirth: Siberian Chiffchaff, Chiffchaff & 3 Greenland Redpoll.




Yellow Wagtail at Norwick
The brownish hue to the upperparts contrasting with a greyer rump is considered a good plumage character for Yellow Wagtail (Dutch Birding 2014).

Sonogram of Norwick Yellow Wagtail (top) compared to sonograms of Yellow Wagtail and Eastern Yellow Wagtail (Dutch Birding 2014).
The calls of the Norwick Yellow Wagtail appear a closer match to either flava or thunbergi than flavissima.