There was quite a large flock of Crested Terns roosting out on a sandbank at Inskip the other day. Low tide was a bit after mid-day and these birds had apparently had time to go out to sea and fish then come in again for a bit of a rest before some more fishing later in the afternoon. (click to see a larger image showing the extent of the flock.)
Breeding season is around Christmas/New Year and so most of these birds were still looking a bit scruffy in only partial breeding plumage. This one, however, was one of a few in nearly complete breeding plumage.
I always think terns look best when they are in flight or when they have their wings raised and are about to fly off. It is also the easiest time to see how the wing moult is progressing. As far as I can see these have the final primary feather just growing back or else are just about to moult the last one. (This post is part of Bird Photography Weekly)