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Article
Ian Newton, AuteurBird migration is one of the greatest wildlife spectacles, producing massive global changes in the distributions of birds twice each year. To understand the evolution of this phenomenon, it is important to know the costs of these journeys in ter[...]
Article
Ian Newton, Auteur
Article
Ian Newton, AuteurDans Ibis (163(1) 2021)Owing to the intensity of game management in Britain, managers of grouse moors have illegally killed raptors to increase the numbers of Red Grouse Lagopus l. scotica available for shooting. This paper summarizes evidence for the recent scale of [...]
Article
Virginia Morandini, Auteur ; Roberto Muriel, Auteur ; Ian Newton, Auteur ; Miguel Ferrer, AuteurWith recent increases in the numbers of reintroduction projects, it has become crucial to know the main factors that allow colonization of new areas and prevent the extinction of small and reintroduced populations. Dispersal is one of the most i[...]
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Michael J. McGrady, Auteur ; James E. Hines, Auteur ; Chris J. Rollie, Auteur ; George D. Smith, Auteur ; Elise R. Morton, Auteur ; Jennifer F. Moore, Auteur ; Richard M. Mearns, Auteur ; Ian Newton, Auteur ; Oscar E. Murillo-García, Auteur ; Madan K. Oli, AuteurOrganochlorine pesticides disrupted reproduction and killed many raptorial birds, and contributed to population declines during the 1940s to 1970s. We sought to discern whether and to what extent territory occupancy and breeding success changed [...]
Ouvrage
Ian Newton, Auteur ; HarperCollins Publishers, Auteur | London : William Collins an imprint of HarperCollins Publishers | 2017Given the underlying topography, the scenery over most of Britain has been created largely by human activities. Over the centuries, landscapes have been continually modified as human needs and desires have changed. Each major change in land use [...]
Article
Miguel Ferrer, Auteur ; Virginia Morandini, Auteur ; Ian Newton, AuteurWe report on an 11-year study of floater interference in a population of Spanish Imperial Eagles Aquila adalberti. We analysed changes over the years in the productivity of 15 territories to test predictions of two hypotheses of density-dependen[...]
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Miguel Ferrer, Auteur ; Virginia Morandini, Auteur ; Ian Newton, AuteurWe report on an 11-year study of floater interference in a population of Spanish Imperial Eagles Aquila adalberti. We analysed changes over the years in the productivity of 15 territories to test predictions of two hypotheses of density-dependen[...]
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Ian Newton, Auteur ; Michael J. McGrady, Auteur ; Madan K. Oli, AuteurThis paper reviews the literature on survival estimates for different species of raptors and owls, examines the methods used to obtain the estimates, and draws out some general patterns arising. Estimating survival usually involves the marking o[...]
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Ian Newton, Auteur ; Brian Little, AuteurDans Bird Study (56 2009)Capsule For 3748 bird carcasses found on 4.7 km of shoreline, the main cause of death was starvation. Three percent of deaths were attributed to wind turbines. Aims To assess the main mortality causes from bird bodies washed ashore near wind tur[...]
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Peter Rothery, Auteur ; Ian Newton, Auteur ; Brian Little, AuteurDans Bird Study (56 2009)Capsule No obvious effects were detected, except for reduced Cormorant Phalacrocorax carbo presence after construction. Aim To check for differences in the numbers and behaviour of seabirds following construction of two turbines 1 km offshore. M[...]
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Peter Rothery, Auteur ; Ian Newton, Auteur ; Brian Little, AuteurDans Bird Study (56 2009)Capsule No obvious effects were detected, except for reduced Cormorant Phalacrocorax carbo presence after construction. Aim To check for differences in the numbers and behaviour of seabirds following construction of two turbines 1 km offshore. M[...]
Article
Ian Newton, Auteur ; Peter Rothery, AuteurDans Bird Study (56 2009)Capsule Adult European Goldfinches in east-central England started moult on 30 July (estimated 95% range 13 July-16 August) and took 77 days (se = +/- 4 days) to moult their primary wing feathers.
Article
Ian Newton, Auteur ; Peter Rothery, AuteurDans Bird Study (56 2009)Capsule Adult European Goldfinches in east-central England started moult on 30 July (estimated 95% range 13 July-16 August) and took 77 days (se = +/- 4 days) to moult their primary wing feathers.
Ouvrage
Article
Ian Newton, AuteurDans Ardea (94(3) 2006)This paper discusses the movement patterns of two groups of birds which are generally regarded as irruptive migrants, namely (a) boreal finches and others that depend on fluctuating tree-fruit crops, and (b) owls and others that depend on cyclic[...]
Article
Article
Kurt K. Burnham, Auteur ; William A. Burnham, Auteur ; Ian Newton, AuteurGyrfalcons Falco rusticolus use the same nest-sites over long periods of time, and in the cold dry climate of Greenland, guano and other nest debris decay slowly. Nineteen guano samples and three feathers were collected from 13 Gyrfalcon nests w[...]
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Ian Newton, AuteurThe numbers of Eurasian Sparrowhawks Accipiter nisus that breed in any landscape depend primarily on the amount of woodland, but within that woodland breeding densities vary with the prey supply. In continuous woodland, pairs space themselves re[...]
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Ian Newton, Auteur ; Keith A. Hobson, Auteur ; Anthony D. Fox, Auteur ; Mick Marquiss, AuteurThe 2004 invasion of northern bullfinches into parts of western Europe was the largest on record. It also involved some birds that gave the normal piping call of the species, and others that gave a different 'trumpet' call, previously unknown to[...]
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Jeff S. Kirby, Auteur ; Alison J. Stattersfield, Auteur ; Stuart H. M. Butchart, Auteur ; Michael I. Evans, Auteur ; Richard F. A. Grimmett, Auteur ; Victoria R. Jones, Auteur ; John O'Sullivan, Auteur ; Graham M. Tucker, Auteur ; Ian Newton, AuteurAn estimated 19% of the world's 9,856 extant bird species are migratory, including some 1,600 species of land- and waterbirds. In 2008, 11% of migratory land- and waterbirds were classed by BirdLife International as threatened or near-threatened[...]
Article
Ian Newton, AuteurThe three main energy-demanding events in the yearly cycles of birds-breeding, moult and migration-tend to occur at different times of year from one another, with minimal overlap. The sequence in which these various events occur varies according[...]
Article
Ian Newton, AuteurOver much of Europe, Common Crossbills Loxia curvirostra depend primarily on the seeds of Norway Spruce Picea abies, and their breeding and movement patterns are governed largely by the cropping patterns of this tree species. Good cone crops occ[...]
Article
Ian Newton, AuteurThis is the second paper in a series to mark the research interests of former BB editor Stanley Cramp, and looks at the impact of pesticides on birds over the past 50 years or so. Cramp's interest in this subject was related to the effects of or[...]
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Mick Marquiss, Auteur ; Ian Newton, Auteur ; Keith A. Hobson, Auteur ; Yann Kolbeinsson, AuteurWe used analyses of stable hydrogen isotope (d2H) measurements in Common Crossbill feathers (d2Hf) to infer the region of origin of Crossbills collected from different irruptions into Britain, Iceland and the Faeroes, comparing these values with[...]
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Ian Newton, Auteur
Article
Ian Newton, AuteurA conference in Oxford in 2014 focused on the continuing use of lead ammunition in game hunting. The evidence presented and subsequent discussion examined various aspects of this issue, including the effects on both humans and wildlife, alternat[...]
Article
Miguel Ferrer, Auteur ; Ian Newton, Auteur ; Roberto Muriel, AuteurThe Spanish imperial eagle (Aquila adalberti) is one of the most endangered raptors in the world. The population of Donana National Park (south-western Spain) suffered a dramatic decline from 1990 on, after a long period of stability. The high a[...]
Article
Ian Newton, Auteur ; Alistair Dawson, AuteurBirds use change in daylength during the year to time events during their annual cycles. Individual Eurasian siskins Carduelis spinus can breed and winter in widely separated areas in different years. Birds at different latitudes will experience[...]
Article
Kurt K. Burnham, Auteur ; Ian Newton, AuteurLittle information exists on the movements of Gyrfalcons Falco rusticolus outside the breeding season, particularly amongst High Arctic populations, with almost all current knowledge based on Low Arctic populations. This study is the first to pr[...]
