1,798,747 documents - page 1 of 500Result pages are truncated to 500.
Panama, March 5-April 17, 1987
Panama, January 25-March 10, 1989
Panama, March 26-May 4, 1990
Panama, February 19-March 19, 1991
Argentina, February 9-March 7, 1992
Iceland, August 4-16, 2001; Brazil, August 20-31, 2001
Brazil, August 6-21, 2002; Uruguay, August 21-September 28, 2002
Uruguay, June 22-July 25, 2003; Brazil, July 25-August 5, 2003
Uruguay, October 17-November 16, 2005; Brazil, November 16-25, 2005
Publication #18 - Distributional Records from Cerro, Panama, with Notes on a Nesting of the Quail-Dove Geotrygon Lawrencii
Publication #26 - A Study of Seedsnipe in Southern South America
Publication #104 - Geographic Variation in the Yellow Warblers (Dendroica petechia, Parulidae) of the Pacific Coast of Middle and South America
Publication #109 - The Subspecies of Grasshopper Sparrow (Ammodramus savannarum) in Panama (Aves: Emberizinae)
Publication #114 - Interaction Between the Two Subspecies Groups of the Seed-Finch Sporophila angolensis in the Magdalena Valley, Colombia
Publication #116 - Systematic Notes on Certain Oscines from Panama and Adjacent Areas (Aves: Passeriformes)
Publication #117 - The Nature of the Variability in the Variable Seedeater in Panama (Sporophila americana: Emberizinae)
Publication #139 - Geographic Variation in Chlorospingus opthalmicus in Colombia and Venezuela (Aves: Thraupidae)
Publication #144 - The Distribution of the Races of Arremon Aurantiirostric (Emberizinae) in Panama
Publication #153 - Birds of the Republic of Panama, Part 4: Order Passeriformes, Suborder Passeres, Hirundinidae (Swallows) to Fringillidae (Finches)
