A direct method for counting the leukocytes, thrombocytes and erythrocytes of birds's bloodA. F. Bernard Shaw · 1930

Counting is for the birdsJulie S. Long · Teaching Children Mathematics · 2011

Counting is for the birdsCarolyn M. Jones · Teaching Children Mathematics · 2010

Counting the Fingers of Birds and DinosaursChatterjee;, S. · Science · 1998

Counting birds on farmland habitats in winter: <b>Capsule</b> Perimeter counts underestimate the number of birds using agricultural fields.Atkinson, Philip W.; Fuller, Richard A.; Gillings, Simon; Vickery, Juliet A. · Bird Study · 2006

Counting the ‘lost generation:’ improving the accuracy of population assessments in birdsK. L. Bildstein · 2011

Ecology and Conservation of Birds in Urban Environments || Counting Birds in Urban Areas: A Review of Methods for the Estimation of AbundanceMurgui, Enrique; Hedblom, Marcus · 2017