The house sparrow ('Passer domesticus') is a bird of the sparrow family 'Passeridae', found in most parts of the world. Originally placed with the finches ('Fringillidae') and then with the weavers ('Ploceidae'), sparrows are now recognized as a separate family.

The violaceous jay ('Cyanocorax violaceus') is a species of bird in the family 'Corvidae'. 'Corvidae' is a cosmopolitan family of oscine passerine birds that contains the crows, ravens, rooks, jackdaws, jays, magpies, treepies, choughs, and nutcrackers

It is found in Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru and Venezuela. Its natural habitats are subtropical or tropical moist lowland forests and heavily degraded former forests. This species is mainly a lowland bird. The violaceous jay is 33–38 cm (13–15 in) long and weighs 262 grams (9.2 ounces).)

The violaceous jay is omnivorous, mainly consuming fruits, insects, and bird and reptile eggs. It is also known to take small lizards as well.

The range of the violaceous jay is the southwest and northwest Amazon Basin, from northern Bolivia, through Amazonian eastern Peru and Ecuador, Amazonian Colombia, and the Orinoco River Basin and beyond into northern Venezuela.

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