A study of Swift weights

01 September 1971
Comments Main paper N E A R L Y A L L OF 2,546 Swifts Apus apus caught at Rye Meads Sewage Purification Works, Hertfordshire, in the late spring and summer of 1962 (845) and 1963 (1,701) were weighed and examined before being ringed and released. The pattern of the weights w...
Read More


01 October 1960
Comments Notes Little Ringed Plover "foot-tapping" to collect food.--On 2nd April i960, at a reservoir near the Suffolk coast, I watched a Little Ringed Plover {Charadrius dubius) feeding on the muddy bottom of a drained pond. It was tripping methodically around and eve...
Read More

Stay at the forefront of British birding by taking out a subscription to British Birds.

Subscribe Now