Magpies similar to the White-backed Magpie in inland Western Australia.
Three females and one male of Gymnorhina
recently collected near Wiluna, Western Australia, are described. Two females are exactly like the White-backed Magpie G. hypoleuca leuconota.
The other specimens are possibly hybrids between the Black-backed Magpie G. tibicen longirostris
and the Western Magpie G. dorsalis
, hybrids between longirostris
or hybrids between all three forms. The presence of leuconota
or partly leuconota
phenotypes may be caused by escaped pets introduced by pastoralists in mid-Western Australia or by leuconota
having a range that extends westwards from Eyre Peninsula through the Nullarbor Plain and Great Victoria Desert. Alternatively, some hybrids between longirostris
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