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Observer variation in estimates of Meadow Pipit Anthus pratensis and Skylark Alauda arvensis abundance on moorland |
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| Authors: | Graeme M. Buchanan James W. Pearce-Higgins Murray C. Grant |
| Affiliation: | 1. British Library of Wildlife Sounds, National Sound Archive , 29 Exhibition Road, London , SW7 2AS , UK;2. Department of Zoology and Marine Biology , University of St Andrews , St Andrews , Fife , KY216 9TS , UK |
| Abstract: | Capsule Counts least susceptible to observer effects were those within 25 m of a transect and the total number along a transect, with observer effects greater for distance sampling. |
| Keywords: | Alauda Riparia Hirundo Anthus Motacilla Troglodytes Prunella Erithacus Phoenicurus Saxicola Oenanthe Turdus Acrocephalus Sylvia Phylloscopus Regulus Muscicapa Fidecula Parus Lanius Sturnus Fringilla Carduelis Loxia Pyrrhula Miliaria Emberiza |