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7 Articles match the specified search.
No bird database is perfect: citizen science and professional datasets contain different and complementary biodiversity information
Volume 69.1, 2022, 97-114. Research articles.
Stable isotope analysis reveals biases in the performance of a morphological method to distinguish the migratory behaviour of European Robins Erithacus rubecula
Volume 64.2, 2017, 377-386. Short communications.
How many common breeding birds are there in Spain? A comparison of census methods and national population size estimates
Volume 58(2), 2011, 343-364. Forum.
Bias in avian sampling effort due to human preferences: an analysis with Catalonian birds (1900 - 2002)
Volume 53(2), 2006, 213-227. Research articles.
The diet of Montagu's Harriers Circus pygargus in relation to land-use systems in pseudosteppe areas of Extremadura (SW Iberian Peninsula)
Volume 52(1), 2005, 3-19. Research articles.
On the premigratory dispersal of the Lesser Kestrel Falco Naumani in Spain
Volume 48(2), 2001, 237-241. Forum.
Estimating the size of Little Grebe (Tachybaptus ruficollis) breeding populations
Volume 44(2), 1997, 157-161. Research articles.
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