Falk, Jay J., Cornell University Smithsonian Tropical Research Institute, United States

• Ornitología Neotropical Vol. 30 - Articles
  HIGHLAND AVIAN SURVEYS IN CERRO HOYA NATIONAL PARK (AZUERO, PANAMÁ) REVEAL NEW RANGE EXTENSIONS, INCLUDING A RARE HUMMINGBIRD (SELASPHORUS SP.)
  Abstract  HIGHLAND AVIAN SURVEYS IN CERRO HOYA NATIONAL PARK (AZUERO, PANAMÁ) REVEALS NEW RANGE EXTENSIONS, INCLUDING THE RARE HUMMINGBIRD SELASPHORUS CF. ARDENS (TROCHILIDAE)  PDF