Experiments Guyana Sparrows Species 
10,000 Birds
MARCH 21, 2015
These and several other species might end up being armchair ticks if and when we take a closer look at their evolutionary history. Taxa that could end up being split into one species occurring north of the Isthmus of Tehuantepec, and one south of the isthmus. (2). Two subspecies of the same species that differ within Costa Rica. (4).
10,000 Birds
DECEMBER 19, 2011
It is my best bird because it is just such an incredible species, and looking at it made me realize that I had temporarily stopped to fully appreciate birds during the stressful last few years. This year I watched them from the day they arrived , until two chicks successfully hatched, the northernmost breeding record for the species.
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