Letters

01 September 1929
Comments Letters SIRS,--May I confirm M. Jacques Delamain's Observation of HedgeSparrows (antea, p . 19). I saw a similar " display " take place on April gth, 1928, in north Northumberland. The courtship took place on a countryroad and was in progress when I arrived. Thea...
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Notes

01 November 1928
Comments Notes IN the following cases during 1928, from west Sussex, the period of incubation has been calculated from the day on which the last egg was laid until the day or days of hatching. The fledging-period from the day or days of hatching until the day or days o...
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