In between other work, we finished a huge new update for Chirp! USA which appeared in the store today. The update adds another 16 birds to the app: the California Towhee, Canyon Towhee, Abert's Towhee, Wrentit, Black-headed Grosbeak, Pygmy Nuthatch, Pyrrhuloxia, Verdin, Western Tanager, Blue Grosbeak, Red-shouldered Hawk, Black-billed Cuckoo, Bobolink, Pine Warbler, Swamp Sparrow and Yellow-billed Cuckoo, plus extra sounds for some birds. The same birds will be coming very soon to Chirp! for the iPad.