Academic web links for the Moustached Hawk-Cuckoo.
BIRDNET: Cuculiformes species list: Sulawesi Hawk-Cuckoo Cuculus crassirostris Large Hawk-Cuckoo Cuculus sparverioides http://www.nmnh.si.edu/BIRDNET/splists/Cuculiformescl.html id=spl-1
ADW: Cuculus: Classification: ...pictures. Species Cuculus sparverioides (large hawk-cuckoo). Species Cuculus vagans http://animaldiversity.ummz.umich.edu/site/accounts/classification/path/Cuculus.html.html id=spl-3
