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Rough-winged Swallow - Stelgidopteryx serripennis
NF Photo 110209 close to Angustera Lake
About Rough-winged Swallow on All About Birds
Honestly I´m not 100% sure about this ID. So if you have an other idéa let me know.
More of Costa Rica on my Travel blog and Photoblog To find links to info and video see the first entry for each bird species. Search for the birds with Etikettes below or labels - tags on the blogs footer area.
