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Herring Gull argentatus |
It would be nice to
hear from Scandinavian birders the evidence for the above phenomenon. It
would also be nice to know whether the evidence for this statement
was based on trapped and ringed individuals. Peter continues: "Suspended moult mainly involves adult birds and during the breeding season. It is not common in immature birds. We have found resumption of moult after suspension in only three second summer birds, and both suspended and resumption of primary moult in seven third summer birds. No first summer birds have been found in suspended moult. Suspended moult therefore appears to be mainly associated with breeding birds. Though having said that, I have found captive non-breeding adult birds in suspended moult. About 10% of adults caught during the breeding season were found to be moulting normally, thought whether they were breeding or not was not established." Back to arrested / suspended moult in graellsii & intermedius.
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