Indicatoridae
National Institutes of Health
Papers overview
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This paper is a critical evaluation of the theories purporting to explain the different number of primaries, which Stegmann (1962…
Among the 8600 living species of birds there are about 75 brood parasites which make no nest, laying their eggs in the nests of…
-Despite two recent anatomical studies to the contrary, the order Piciformes appears to be polyphyletic. The structure of the…
Die Handschwingen der Galbulidae, Bucconidae und Ramphastidae werden mit descendenter Sequenz gemausert. Bei den ersten beiden…