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Article

Biases in the field estimation of shorebird prey sizes

N. M. Lee, Auteur ; P. A. R. Hockey, Auteur

Dans Journal of Field Ornithology (72(1) WIN 2001)

Several studies have attempted to calculate the energy intake rates of shorebirds. One method of doing this involves estimating the size of prey items in relation to the bird's bill length, and then using an average bill length to convert this v[...]

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