Search

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...

Letter

01 November 1946 Comments Letters S I R S , -- I have observed no less than twenty-three instances between February 27th and March 7th, 1946, where one Rook (Corvus f. frugUegus) was either in or standing upon t h e nest with two attendant Rooks perched close together a t some twelve t o ...

Reviews

01 November 1946 Comments Reviews Birds in Colour. By Walter Higham. (Collins, 1945). Price 25s. T H I S book comes as something of a shock to those who are acquainted with the excellence of the colour rendering in Mr. Higham's cinematograph films. The gap between colour transparencies an...

Notes

01 November 1946 Comments Notes RAVEN NESTING IN A ROOKERY, ON March loth, 1946, I flushed a Raven (Corvus c. cor ax) from a nest at the top of a tall pine in a conifer wood about five miles from Cardiff. In view of previous records of this species nesting in rookeries (antea, Vol. xxx...

Variations in clutch size and some nesting success data

01 November 1946 Comments Main paper SOME time ago Mr. David Lack remarked to me that during the earlier months of the season birds tended to lay smaller clutches than in the later months. My observations in Devonshire show the following results.Hence C/3 is not uncommon in the early part of...

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

Subscribe Now

Search

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

Letter

Reviews

Notes

Variations in clutch size and some nesting success data

Sign Up to our Newsletter