Ethan has documented 18 out of 229 members of the family Fringillidae.
Haemorhous mexicanus (House Finch)
Haemorhous purpureus (Purple Finch)
Carpodacus erythrinus (Common Rosefinch)
Chlorophonia callophrys (Golden-Browed Chlorophonia)
Euphonia gouldi (Olive-Backed Euphonia)
Euphonia hirundinacea (Yellow-Throated Euphonia)
Euphonia luteicapilla (Yellow-Crowned Euphonia)
Bucanetes githagineus (Trumpeter Finch)
Spinus psaltria (Lesser Goldfinch)
Spinus lawrencei (Lawrence’s Goldfinch)
Pyrrhoplectes epauletta (Gold-Naped Finch)
Carpodacus subhimachalus (Crimson-Browed Finch)
Carpodacus thura (Himalayan White-Browed Rosefinch)
Leucosticte nemoricola (Plain Mountain Finch)
Carduelis carduelis (European Goldfinch)
Fringilla coelebs (Common Chaffinch)
Chloris chloris (European Greenfinch)
Chrysocorythus estherae (Mountain Serin)