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Notes

01 March 1962 Comments Notes Peregrine incubating Kestrel's eggs.--On 13 th May 1961, I was prospecting some crags in the Great Glen, Inverness-shire, in the hope of rinding a pair of nesting Peregrines (Falco peregrinus). As I approached the most likely-looking face from below, a fe...

Studies of less familiar birds 117. Scarlet Grosbeak

01 March 1962 Comments Main paper Asiatic bird whose range extends into eastern Europe. It is a rare visitor to Britain, apart from Shetland (notably Fair Isle) where it is of annual occurrence in the autumn. It is a species which is in the process of expanding quite vigorously north and ...

How do Black-headed Gulls distinguish between eggs and egg-shells

01 March 1962 Comments Main paper {Lams ridibundus) remove the empty eggshell shortly after the hatching of the chick. An investigation into the survival value of this response and of the stimuli eliciting it (Tinbergen et al. 1962a) yielded the following results. An empty egg-shell at a ...

Foot-paddling in Gulls

01 March 1962 Comments Main paper I S H O U L D L I K E to supplement the interesting comments recently made by Sparks (1961) on the functions of foot-paddling in gulls, since more is known about it than is apparent from his article. In my book The Herring Gull's World (1953), where I ref...

Development of Paddling and other movements in young Black-headed Gulls

01 March 1962 Comments Main paper R E C E N T L Y , in an interesting paper in this journal, Sparks (1961) discussed the relationship between foot-movements and feeding in shore birds. In view of his conclusions, it seems worth recording the age at which paddling and other movements were ...

Mass mortality among European Common Terns in South Africa in April-May 1961

01 March 1962 Comments Main paper In 1961, an unknown but apparently substantial proportion of the migrant population lingered long after the usual departure date and during April many became ill and died. High mortalities were observed at several localities from Port Elizabeth in the ea...

Weights from five hundred birds found dead on Skomer Island in January 1962

01 March 1962 Comments Main paper Department of Zoology, University College of Swansea S K O M E R , 722 A C R E S , is the largest of the islands off the Pembrokeshire coast and one of the most westerly points in Wales. A visit was made there from 2nd to 5 th January 1962, during one of ...

Notes

01 September 1941 Comments Notes A NEST of this bird (Muscicapa s. striata) was begun on May 27th, 1941 on the top of a nesting-box in an alcove of my house in Bucks, but was later abandoned, owing probably to the nesting material slipping off the smooth lid. The Flycatchers then turned...

Christopher Merrett and his Pinax Rerum Naturalium Britannicarum

01 September 1941 Comments Main paper CHRISTOPHER MERRETT, the son of Christopher Merret, was born at Winchcomb, in Gloucestershire, on February 16th, 1614. In 1631 he became a member of Gloucester Hall, Oxford, and later removed to Oriel College. He took his B.A. degree in 1635, and then--de...

Further data on nest-Sanitation

01 September 1941 Comments Main paper THE present paper is a natural sequel to that by R. H. Blair and B. W. Tucker (antea, Vol. xxxiv, pp. 206-215, 226-235, 2 50-255). That paper, it may be recalled, summarized the observations on the nest-sanitation of over 70 species collected in the cours...

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Notes

Studies of less familiar birds 117. Scarlet Grosbeak

How do Black-headed Gulls distinguish between eggs and egg-shells

Foot-paddling in Gulls

Development of Paddling and other movements in young Black-headed Gulls

Mass mortality among European Common Terns in South Africa in April-May 1961

Weights from five hundred birds found dead on Skomer Island in January 1962

Notes

Christopher Merrett and his Pinax Rerum Naturalium Britannicarum

Further data on nest-Sanitation

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