Sunday, 30 September 2012

Unusual moult in a Sand Martin

On the 20th September we decided to try for the last few hirundines roosting in the local small reedbed, as well as a modest catch of Swallows we caught 2 Sand Martins. One of which was an adult that had undergone a partial moult of the flight feathers.
On both wings P1 & and  P2 had been moulted together with the corresponding PCs, in addition a sole tertial had also been moulted. All the other major flight feathers were old.

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