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September and October report

01 February 1976 Comments News and comment The weather in early September was mainly anticyclonic but an airstream from the west and south-west took over, being particularly prominent from mid-month with gale force winds on several occasions. In October the picture changed, with many warm, dry ...

News and Comment

01 February 1976 Comments News and comment Appointments to the Scientific Authority for Animals The Secretary for the Environment has appointed twelve members of the Scientific Authority for Animals to give advice on the Convention on International Trade in Endangered Species of Wild Fa...

Reviews

01 February 1976 Comments Reviews Watching Sea Birds. By Richard Perry. Groom Helm, London, 1975. 230 pages; 16 line-drawings; 2 maps. £4.75. This is not really a new book but a reprinting of parts of two of the author's earlier books, both of which--Lundy Isle of Puffins (194...

Notes

01 February 1976 Comments Notes Peregrine and Raven possibly contaminated by Fulmar oil With reference to R. A. Broad's paper on Fulmar Fulmarus glacialis oil contamination (Brit. Birds, 67: 297-301), the following observations of possible oiling may be of interest. On 10th J...

The flight behaviour of Starlings at a winter roost

01 February 1976 Comments Main paper Co-ordinated flying displays by flocks of Starlings Sturnus vulgaris are often a feature at pre-roosting areas, but the most spectacular displays occur at the main roost, when very large numbers of birds fly together, prior to final roosting. On many e...

Laying dates of four species of tits in Wytham Wood, Oxfordshire

01 February 1976 Comments Main paper It has been argued by Perrins (1970) that laying a large clutch imposes a considerable extra load on the food-gathering abilities of a small bird. From this, he suggested that the date at which individual birds in a population begin laying is related t...

Reviews

01 February 1964 Comments Reviews A Study of Bird Song. By Edward A. Armstrong. Oxford University Press, London, 1963. x i v + 3 3 5 pages; 17 plates; 43 figures and 14 tables. 45 s. Far more work has been done on the vocal behaviour of birds than of all other animals combined. Much of it...

Notes

01 February 1964 Comments Notes Unusual numbers of sea-birds at Teesmouth in August 1962.--In August 1962 huge concentrations of Sprats Clupea sprattus appeared in the bay and estuary of the River Tees, on the border of Co. Durham and Yorkshire. Many of the fish entering the mouth of th...

Measurements and Weights Of Great Black-Backed Gulls

01 February 1964 Comments Main paper marine gulls and this short paper is intended t o give some idea of the size range and sex differences within a single population of Great Black-backed Gulls Larus marinus. T h e individuals concerned were collected during a gull control programme on Skok...

Oystercatchers and Mussels

01 February 1964 Comments Main paper I N T H E S U M M E R O F 1961, on the Drigg Peninsula near Ravenglass, Cumberland, a pair of Oystercatchers Haematopus ostrakgus made their nest on a relatively bare sandy area about eight yards square and surrounded by a dense growth of nettles Urtica s...

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September and October report

News and Comment

Reviews

Notes

The flight behaviour of Starlings at a winter roost

Laying dates of four species of tits in Wytham Wood, Oxfordshire

Reviews

Notes

Measurements and Weights Of Great Black-Backed Gulls

Oystercatchers and Mussels

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