Abstract
Two subspecies of Graceful Honeyeater Meliphaga ( Microptilotis ) gracilis are recognised in north-eastern Queensland: imitatrix inhabiting the Wet Tropics and gracilis inhabiting northern Cape York Peninsula. Vocalisations differ greatly between the two, so the strong possibility emerges that they are distinct species. The ranges of these taxa are separated by ~140 km in the vicinity of Cape Flattery–Princess Charlotte Bay on the eastern coast of Cape York Peninsula. Significantly, a thorough search confirms that there have been no specimens collected from this geographical gap between the two populations and previously suspected intergradation does not occur. This paper describes the considerable differences between the two, especially with respect to vocalisations, and suggests that these taxa represent distinct species.
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