MAK, your tweet is from 10:10 about Brian seeing Archer and another pefa DT. From the archive viewer, it looks like B left at 10:04 and Archer is on eggs at 10:05. So if Brian saw A before 10:05 maybe it was Archer, but after 10:05 ?
Margaret, when I got the message from Brian of the 2 flying Beauty was in the nestbox on the eggs so it couldn't have been Beauty with him. We can't always go by the times on the forum because there is a delay from the time tweets are sent out and when they show up on the forum.