Yes I know it's that male Grey Wagtail AGAIN but dear reader, bear with me – do you know the colour of the calamus, because I didn't, I do now – I think!
|Bandits at 11 o'clock, looking for flying insects overhead|
|Time for a 'spruce-up'|
|including the tail|
|and certain feathers, note the upper half|
|and the 'white feather' is in fact 'black' for the half closest the skin|
|back to business|
Postscript, I am not sure this black part of the feather is actually 'the camulus', I may have may physiology and description incorrect so I would appreciate any comments or input.