Blake Matheson:
Eophona migratoria
Blake Matheson:
Guiraca caerulea interfusa
Blake Matheson:
Coccothraustes coccothraustes
Blake Matheson:
Passerina amoena
Blake Matheson:
Coccothraustes vespertinus
Blake Matheson:
Passerina cyanea III
Blake Matheson:
Passerina cyanea II
Blake Matheson:
Passerina cyanea
Blake Matheson:
Pheucticus melanocephalus
Blake Matheson:
Pheucticus ludovicianus
Blake Matheson:
Pheucticus ludovicianus
Blake Matheson:
Pheucticus ludovicianus
Blake Matheson:
Pheucticus ludovicianus
Blake Matheson:
Pheucticus ludovicianus
Blake Matheson:
Piranga rubra