. Bulletin of the Natural History Museum Zoology. TAXONOM1C STATUS OF PSITTACULA INTERMEDIA 39 juv. H- Eastern F HI* 30 Western F -"8^-20 Sane Q 2 Sedgemore -^K5 BMNHDl C—^—40 R—«^-—35 -2 ^1 0 1 2 Factor 1 , ; bill size Fig. 3 Graph of means (squares), standard deviations (heavy bars), and ranges (narrow bars) of individual scores for putative parental species and hybrids on Factor 1, the only significant axis in a PCA of culmen length (component loading ), maxilla height (), and maxilla length (). The number to the right of the range bar is n. Symbols are as for Figu
. Bulletin of the Natural History Museum Zoology. TAXONOM1C STATUS OF PSITTACULA INTERMEDIA 39 juv. H- Eastern F HI* 30 Western F -"8^-20 Sane Q 2 Sedgemore -^K5 BMNHDl C—^—40 R—«^-—35 -2 ^1 0 1 2 Factor 1 , ; bill size Fig. 3 Graph of means (squares), standard deviations (heavy bars), and ranges (narrow bars) of individual scores for putative parental species and hybrids on Factor 1, the only significant axis in a PCA of culmen length (component loading ), maxilla height (), and maxilla length (). The number to the right of the range bar is n. Symbols are as for Figure 1 and 2; eastern and western finschii are included as separate groups. larger than intermedia. In the plot of the distal width of rectrix 2 (R2) vs. the pale tip length of that feather (Figure 2C), intermedia fall belweencyanocephala/roseata andhimalayana, but not mostfinschii. Psittacula krameri is unique in its combination of a broad, very short pale tail tip, and in this Sane's specimen is intermediate between krameri and cyanocephala/roseata, and certainly not himalayana. On a PCA of three bill measures (Figure 3, Table 3) selected to allow inclusion of as many specimens and live hybrids as possible, the only significant axis was Factor 1, a very strong size axis. On this axis, cyanocephala and roseata had the smallest mean factor scores, with the BMNH intermedia slightly larger. The other putative intermedia and known hybrids fell between these and the succes- sively larger finschii and himalayana groups. Psittacula krameri was much the largest, and Sane's specimens were the largest of the putative hybrid groups, again showing the influence of krameri. In a PCA for which variables were selected to allow inclusion of one of Sane's specimens (Figure 4A, Table 3), the AMNHintermedia and Sedgemore's birds group near each other, and between the widely spaced roseata/cyanocephala and himalayana groups, but overlap considerably with finschii. Sane's bird, however, fal
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