Martin Willis / Budgerigar (Melopsittacus undulatus) father with begging chick at nest cavity, Queensland, Australia

Karine Aigner / Cuban parakeets (Psittacara euops) preening each other, Bermejas, Cuba. Endemic.

Karine Aigner / Cuban Parakeet (Psittacara euops) preening each other, Cuba. Endemic.

Karine Aigner / Cuban parakeet (Psittacara euops) preening, Bermejas, Cuba. Endemic.

Doug Wechsler / Yellow-plumed parakeets (Leptosittaca branickii) at nest cavity in wax palm stump, Tapichalaca Biological Reserve, Ecuador.

Marcos Baumann/ BIA / Mountain Parakeet (Bolborhynchus aurifrons) pair, Chile

Bence Mate / Orange chinned parakeets (Brotogeris jugularis) two looking at each other, Santa Rita, Costa Rica.

Roland Seitre / Budgerigar (Melopsittacus undulatus) flock drinking and bathing in water, Wannoo, Billabong Roadhouse, Western Australia.

Roland Seitre / Budgerigar (Melopsittacus undulatus) flock in flight from grasses, ?Arubiddy, Nullarbor, Western Australia.

Roland Seitre / Budgerigar (Melopsittacus undulatus) massive flock on small trees in desert, Murchinson Shire, Western Australia. January.

Juergen Freund / Flock of Budgerigars (Melopsittacus undulatus ) drinking in an outback dam, Northern Territory, Australia.

Gabriel Rojo / Monk parakeet (Myiopsitta monachus) Calden Forest , La Pampa , Argentina