I think avocets are very graceful birds to watch as the feed, moving their bills from side to side in the shallow water searching for crustaceans and worms.
Whilst they may be easy to photograph as waders go, I think it is hard to take a good photograph on two counts. Firstly, the exposure is tricky as with any black and white subject, you either over-expose and miss the detail on the white plumage, or under-expose and lose detail on the black. Secondly, it is difficult to avoid the head being in shadow as they move their neck from side to side. As a result, although I take many (hundreds) of shots on a good day's visit to RSPB Titchwell, I find there are very few images with which I am totally satisfied. This is one, I hope you enjoy it!