This year we are seeing nankeen kestrels hovering over paddocks and perched on roadside wires. Last year we had black-shouldered kites but no nankeen kestrels. Can you explain?
Black-shouldered kites have been scarce this year however, they were fairly common for a few years ago.
The kestrels seem to have replaced them, but I cannot explain why one is now common and the other has almost disappeared.
Both feed on mice and large insects and with large mouse numbers, we could expect black-shouldered kites, but this has not yet eventuated.
Numbers of black-shouldered kites have always fluctuated more than those of nankeen kestrels. Perhaps the kite population is currently centred in inland regions.
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