Observation on Sand-Martins at the Nest
01 September 1939
Main paper
in the Sand-Martin (Riparia r. riparia) is said to be " by both sexes but positive data scanty" (F. C. R. Jourdain, 1938)* ; males had been found on eggs by Stoner {1936), but the nature of their participation in the brooding was not ascertained. We had a...
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