Magpies Similar to the White-Backed Magpie in Inland Western Australia
| Posted: |
08/10/2021 |
| Author(s): |
Andrew Black, Julian Ford |
Three females and one male of
Gymnorhina recently collected near Wlluna, 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 and
leuconota 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 betwen
longirostris and
dorsalis resemble
leuconota.
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