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Index of Subjects I would consider this display behaviour. According to the literature at hand (Birder's handbook):"Courting male performs series of dives from near stall, incl. barrel-rolls in multiple U-shaped loops." Cheers Ulli > During the migratory count, I had a Northern Harrier (male) fly by making a noise I had never heard before. Usually I think of the Harrier flying quietly low over a field. This one was swooping up and down and doing loops in the wind over a treed lake. It's black wing tips stood out. It kept doing this many times - very odd.... then following behind was another lighter colored Harrier flying sedately low and level over the trees. > > Can this be considered a display? > > Incidently, I had a reasonable day with 45 species and 400 birds, in the middle of the Valley. > > Larry Bogan - larry@bogan.ca 902-678-0446 http://www.bogan.ca > 6539 Brooklyn St, Cambridge Station, N.S. B0P 1G0 > >
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