irsychan

Quote:

Original posted by 星魚 at 6/01/2014 14:28
Yellow Wagtail

As a beginner, I am often confused between grey and yellow wagtails.  Could this one be a grey wagtail instead?

irsychan

Quote:

Original posted by louislee at 6/01/2014 21:11
I believe the two can be distinguished by the primaries

Thank you.  However, I thought the yellow wagtails have black legs and yellow underparts.
The photo seems show that the legs are not black?

irsychan

After examining the colour of the legs more closely it may be black partly covered by mud.  Could this be first winter Yellow Wagtail?  Would be interested to learn how to distinguish between yellow and grey wagtails from the primaries as this is not mentioned in literature I got.

irsychan

Thank you ajohn.  Your detailed advice is very helpful indeed.
Normally it isn't that difficult to differentiate but this first winter plumage is a bit tricky.