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Auteur Sheila M. Macdonald |
Documents disponibles écrits par cet auteur (4)
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Article
Chris F. Mason, Auteur ; Sheila M. Macdonald, AuteurDans Wildfowl (51 2000)Waterbirds were counted on three occasions during the winter of 1999-2000 on 22 1-km reaches of river in north Essex and south Suffolk, eastern England. Fourteen species were recorded but only five were frequent: Little Grebe (Tachybaptus rufico[...]![]()
Article
Christopher F. Mason, Auteur ; Sheila M. Macdonald, AuteurThe use of two birdbaths, situated at different distances from cover, and a garden pond was recorded over a 12-month period. Thirty species used the birdbaths but only eleven used the pond, which received only 2% of the total visits recorded. Th[...]![]()
Article
Christopher F. Mason, Auteur ; Tanja A. Hofmann, Auteur ; Sheila M. Macdonald, AuteurMost river corridors have been highly modified and managed but they still support diverse assemblages of birds. To aid conservation it is important to know which river corridor habitats support the greatest diversity and numbers of bird species.[...]



