Non-breeding and nests without eggs in the Lesser Black-backed Gull.

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O'Connell, Mark; Coulson, J; Raven, S; Joyce, S;

Estimates of the number of breeding Lesser Black-backed Gulls Larus fuscus at the Tarnbrook Fell gullery, Lancashire, have been made from annual counts of nests since 1981. During all of these surveys, the mean percentage of nests which did not contain eggs has been rem... View more
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