Slender-billed cuckoo-dove
The slender-billed cuckoo-dove was until recently the name of a species of bird in the family Columbidae. Its range covered Brunei, Indonesia, Malaysia, Papua New Guinea and northern Australia. The binomial M. amboinensis now refers to the Amboyna cuckoo-dove. The taxonomy of the slender-billed cuckoo-dove was complex, but most authorities now split it into four species based on analyses of vocalizations. This will be further refined by future genetic analyses.
In 2003 the ruddy cuckoo-dove of Brunei, Indonesia, and Malaysia was split from the slender-billed cuckoo-dove.
In 2016 the slender-billed cuckoo-dove was split into the following species:
of eastern Australia Amboyna cuckoo-dove of eastern Indonesia and Papua New Guinea Sultan's cuckoo-dove of Sulawesi and the northern Moluccas