Ethan has documented 32 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 sibiricus (Long-Tailed Rosefinch)
Carpodacus thura (Himalayan White-Browed Rosefinch)
Carpodacus davidianus (Chinese Beautiful Rosefinch)
Carpodacus rhodochlamys (Red-Mantled Rosefinch)
Carpodacus formosanus (Taiwan Rosefinch)
Leucosticte nemoricola (Plain Mountain Finch)
Carduelis carduelis (European Goldfinch)
Carduelis caniceps (Gray-Crowned Goldfinch)
Fringilla coelebs (Common Chaffinch)
Coccothraustes coccothraustes (Hawfinch)
Pyrrhula pyrrhula (Eurasian Bullfinch)
Pyrrhula leucogenis (White-Cheeked Bullfinch)
Chloris chloris (European Greenfinch)
Chloris sinica (Oriental Greenfinch)
Spinus spinus (Eurasian Siskin)
Serinus pusillus (Fire-Fronted Serin)
Chrysocorythus estherae (Mountain Serin)
Eophona migratoria (Yellow-Billed Grosbeak)
Eophona personata (Japanese Grosbeak)
Loxia curvirostra (Red Crossbill)