The Comparative Osteomorphological Study of the European Small-statured Falcons (Aves: Falconidae)

Béla, Solti (1996) The Comparative Osteomorphological Study of the European Small-statured Falcons (Aves: Falconidae). Folia historico-naturalia Musei Matraensis, 21. pp. 5-282. ISSN 0134-1243

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Abstract

The author have completed the comparative osteomorphological study of smaller European Falcons, namely the Hobby (Falco subbuteo L., 1758), Merlin (Falco columbarius L., 1758), Eleonora's Falcon (Falco eleonorae Géné, 1839), Kestrel (Falco tinnunculus L., 1758), Red-footed Falcon (Falco vespertinus L., 1766) and the Lesser Kestrel {Falco naumanni Fleisch., 1818) on the basis of 187 complete or partial skeletons. This study deals with all the important bones except the ribs and the backbones, even the digits are included. From every bone 3 to 10 measurements were taken, and the minimum and maximum values, averages, variances, variant coefficients, sum of squares are given according to the sexes. From the data the ratios yielding the greatest difference are calculated, which are characteristic to the given species, and hence are useful in the identification of the species. The interspecific size and form differences are demonstrated with figures, scatter diagrams and drawings.

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