Blue-gray Tanager (Thraupis episcopus)  Photographed in the village of San Luis near the southwestern shore of Lake Arenal, Guanacaste Province, Costa Rica on Nov 10, 2014. Red-legged Honeycreeper (Cyanerpes cyaneus) Male  He was taking off just as I took this photo near San Luis, Guanacaste Province, Costa Rica near the southwestern shore of Lake Arenal on Nov 2, 2011. Red-legged Honeycreeper (Cyanerpes cyaneus) Female  Photographed in the town of San Luis, Guanacaste Province, Costa Rica near the southwestern shore of Lake Arenal on March 25, 2009.
Glossy Flowerpiercer (Diglossa lafresnayii)  Photographed at the Yanacocha Reserve near Quito, Ecuador on March 2, 2006. Blue-black Grassquit (Volatinia jacarina) Male  Photographed in a cow pasture near the village of San Luis, Guanacaste Province, Costa Rica on Nov. 2, 2016.   Map Thick-billed Seed-Finch (Sporophila funerea) Female  Photographed at Vientos Frescos Falls near the town of Tilaran, Guanacaste Province, Costa Rica on Nov 4, 2014.
Variable Seedeater (Sporophila corvina) Female  Photographed in the village of San Luis near the southwestern shore of Lake Arenal, Guanacaste Province, Costa Rica on Nov 9, 2014. Bananaquit (Coereba flaveola) Juvenile  Photographed at the Monteverde Cloud Forest Reserve, Costa Rica on Nov 5, 2014. Yellow-faced Grassquit (Tiaris olivaceus) Male  Photographed in Guanacaste Province, Costa Rica near Lake Arenal on Nov. 8, 2016.   Map
Yellow-faced Grassquit (Tiaris olivaceus) Female  Photographed in Guanacaste Province, Costa Rica near Lake Arenal on Nov. 8, 2016.   Map Yellow-faced Grassquit (Tiaris olivaceus) Immature Male  Photographed near the southwestern shore of Lake Arenal, Guanacaste Province, Costa Rica on Nov 2, 2011.  It has some black on the chest, but still no significant amount of yellow on the face.  It was in a flock with adult  Yellow-faced Grassquits . Small Ground-Finch (Geospiza fuliginosa)  Photographed on Santa Fe Island, the Galapagos, on March 6, 2006.