Bibby colin j editor (3 risultati)

Hardcover. Condizione: As New. Condizione sovraccoperta: Very Good. Each of the species accounts provide up-to-date information on current populations, basic ecology, threats to the species and the legal protection and conservation measures now in force. General chapters deal with the state of Britain's various habitats, legal matters and conservation for the future.…

Soft cover. Condizione: Very Good. 60 pages. • Mortality in British Gulls (pp. 65-74) by J.J.M. Flegg & R. A. Morgan: An analysis tracking recovery rates, life expectancy, and common causes of death across various gull species ringed in Britain. • Weights of Blackcaps on Migration by Colin J. Bibby: A study examining the weight changes and fuel/fat deposition dynamics of Blackcaps (Sylvia atricapilla) while on active migratory routes. • Some Biases in Cannon- and Mist-Netted Samples of Wader Populations (pp. 105-107): Exploring the selective trapping dynamics of different wading bird capture methods and how they affect demographic data. • Analysis of Ringing and Subsequent Recoveries from a Yorkshire Blackbird Roost (pp. 117-119): A localized tracking study documenting the site fidelity and geographic origins of wintering Eurasian Blackbirds. • Papers from Ringing Group, Bird Observatory and Local Bird Reports (pp. 121-124): A compiled synthesis of regional datasets highlighting active field research from voluntary bird ringers (SL#17/2). …

Soft cover. Condizione: Very Good. 64 pages. Illustrated. • "Feeding behaviour of autumn passage migrants in north east Portugal" by Peter N. Ferns (Pages 3-11) - Investigated the hyperphagia, diet adjustments, and premigratory fattening of trans-Saharan passerines (such as Willow Warblers and Whitethroats) utilising staging posts in Iberian cork oak woodlands. • "The migration of redstarts through and from Britain" (Pages 12-24) - Evaluated long-term ringing recoveries and bird observatory records to track the seasonal pathways, spring/autumn chronology, and winter destinations of the Common Redstart (Phoenicurus phoenicurus). • "Kingfishers at Rye Meads" (Pages 48-51) - A study analysing trapped populations and local movements of Common Kingfishers (Alcedo atthis) managed by the Rye Meads Ringing Group (SL#17/2).…