Australia’s desert sweetheart with a yellow crest and a whistling heart. Known as the Weiro in WA, the cockatiel is a small, social parrot with a big personality. Males serenade with sweet, complex whistles, while both sexes can rock a punky head-crest that shows off their mood. Native to inland Australia, they travel in flocks and thrive in open, arid areas where water is scarce and food is seasonal. Not endangered, but always adorable — cockatiels are also one of the most popular pet birds worldwide, thanks to their gentle nature and musical charm. Basically, a tiny parrot with a giant fan club.