BLACK-EARED CUCKOO. 
“ List of the Birds of Australia ” in 1913, and here I tentatively retain them. 
The distinctions do not now appear so well marked, but this seems to be due to 
the lack of complete series showing plumage and seasonal changes. As the 
bird appears to be spreading on the east towards the coastal districts it is possible 
the differences will become more marked in the future. 
The evolution of the genus from the ancestral form of Lamprococcyx is 
presumed, and if it spreads to the wetter districts it is sure to become darker, 
more glossy and more like a Glossy Cuckoo than the desert bird is. The egg 
suggests that of the Bronze Cuckoos, while it is recorded that its flight recalls 
that of these latter birds. 
VOL. vn. 
337 
