Notes

01 September 1939 Comments Notes PROOF of the sex of the bird choosing the nesting-site is generally so difficult to obtain that it seems worth while to record some evidence in the case of a House-Sparrow (Passer d. domesticus) in my garden in the spring of 1939. Early in March I notice...
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Cliff-Breeding in the House-Martin

01 June 1939 Comments Main paper IN response to the editorial appeal (antea, Vol. XXXII, p, 118) for information on cliff-breeding in the House-Martin (Delichon u, urbica) a number of observers have sent in records. From these it is obvious that breeding under natural conditions is far m...
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Notes

01 March 1939 Comments Notes THE particulars given in the following table though drawn from observations in one small area may be of some value if taken in conjunction with similar observations in other districts. All the nests detailed were observed in 1938 and, except for those of...
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