I think some birds may show a crest when the feathers on the head have
been disturbed mechanically - blown by the wind or moved by contact with a
branch or another bird. Crested birds have feathers structured to make the
crest and some can raise or lower it with the underlying musculature. Some
Carol,
I don't think all birds can do this, but yes many birds can raise their crown
feathers, often during alarm or during various interactions with other birds of
the same or even different species.
Marie
Marie Read Wildlife Photography
452 Ringwood Road
Freeville NY 13068 USA
Phone
