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Differences in nest hole positions in a mixed colony of Sand Martin Riparia riparia and Pale Sand Martin R. diluta

Mariya M. Scherbakova, Auteur ; Igor G. Korobitsyn, Auteur

Dans Bird Study (67(4) October, 2020)

Despite the similarity in the biology of the Sand Martin Riparia riparia and Pale Sand Martin Riparia diluta, in a mixed breeding colony the two species showed separation of their nesting holes and showed no signs of hybridization.

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