Academic web links for the Waterfall Swift.
BIRDNET: Apodiformes species list: ...collared Swift Streptoprocne zonaris Biscutate Swift Streptoprocne biscutata http://www.nmnh.si.edu/BIRDNET/splists/Apodiformescl.html id=spl-1
ADW: Hydrochous gigas: Classification: Hydrochous gigas (waterfall swift). Classification. What do these icons mean? ... Parent http://animaldiversity.ummz.umich.edu/site/accounts/classification/Hydrochous_gigas.html id=spl-2
