Ah, yes the peregrine, you may have the answer to my question, why did this one have dark centres to its secondaries and greater coverts? (Sort of like in the sketch), I've never noticed this on any peregrine I've seen, but to be fair, I am usually underneath them.
Nick , Sounds a bit strange to me . However, This could be down to
a not very complete moult after breeding I.e new feathers being
the darker ones. Although with peregrines if adults are only going to
moult any feathers after the breeding season they will largely be
Primary, secondaries, tail, Greater coverts and Primary coverts oh
and Upper tail coverts. Could also have been a second year bird
holding onto those particular feathers although when this
happens they usually look paler and bleached out , not darker.
Wish I had seen it . The only other explination is some kind
of wierd Feather aboration . Friend had a young female once
that had pale white patches on the shaft of every feather.
the following year she moulted normaly looked like a bogo
standard Peregrinus!, weird .
On another note stop putting lovely pieces of work in the bin!!!!
Love the Kingfisher , love the Heron