Classification of Birds of South America Part 04: Puffleg 60a Haplophaedia aureliae Greenish Puffleg 60c, 61a Haplophaedia assimilis
http://www.museum.lsu.edu/~Remsen/SACCBaseline04.html id=spl-1

Classification of birds of South America; Composite List: ...bellied Puffleg Haplophaedia aureliae, Greenish Puffleg Haplophaedia assimilis,
http://www.museum.lsu.edu/~Remsen/SACCList.html id=spl-2

BIRDNET: Apodiformes species list: Emerald-bellied Puffleg Eriocnemis alinae Black-thighed Puffleg Eriocnemis derbyi
http://www.nmnh.si.edu/BIRDNET/splists/Apodiformescl.html id=spl-3

BIRDCHAT archives -- July 2003, week 3 (#16): 21 occur in the Tandayapa Valley, 6 of which are considered Near-Threatened
http://listserv.arizona.edu/cgi-bin/wa?A2=ind0307c&L=birdchat&F=&S=&P=1641 id=spl-4