Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Yellow-thighed Finch, Pselliophorus tibialis, is a passerine bird which is endemic to the highlands of Costa Rica and western Panama. Despite its name, it is not a true finch, but rather a member of the large Emberizidae family, which also includes buntings, American sparrows, juncos and towhees. This is a common bird in wet mountain forests, second growth, bamboo clumps, scrubby pasture and bushy clearings from 1700 m altitude to the timberline. When not breeding, it can descend to 1200 m on the Caribbean slopes. The nest, built by the female, is a bulky cup of plant material hidden in coarse grasses, bamboo or a thickly-foliaged tree 0.7-4.6 m above the ground. The female lays two brown-blotched white or pale blue eggs, which she incubates for 12-14 days. The Yellow-thighed Finch is a long-tailed species, 18.5 cm long and weighing 31 g. The adult is mainly dark grey, becoming black on the crown, throat, wings and tail, and with an olive tinge to the belly and breast.