The budgerigar, (Melopsittacus undulatus) also known as the common parakeet, shell parakeet or budgie, is a small, long-tailed, seed-eating parrot. Naturally, the species is green and yellow with black, scalloped markings on the nape, back, and wings. Budgerigars are found in open habitats, primarily in scrublands, open woodlands, and grasslands of Australia. The birds are normally found in small flocks, but can form very large flocks under favourable conditions. The nomadic movement of the flocks is tied to the availability of food and water. Wild budgies eat various seeds (as they come into season), fruits, berries, and vegetation. They feed on or near the ground. What they eat varies with food availability during different seasons. Larger birds such as hawks and falcons do prey upon the budgie. Feral cats, rats, and other rodents sometimes raid budgie nests for eggs or hunt the birds themselves. Budgies use a medley of chirrups, whistles, chatter, trills and various other snippets they’ve picked up (including human speech), in a barrage of bubbling, tuneless put pleasant song. They often sing together, reassuring each other that all is well and everyone is safe. Here is a link so you can listen to this bird too