Bruno D'Amicis / Yellow-fronted parrot (Poicephalus flavifrons) in tree, Zege peninsula, ake Tana. Endemic to Lake Tana Biosphere Reserve, Ethiopia

David Perpinan / Close-up of Yellow chevroned parakeet (Brotogeris chiriri) chicks and a Peach fronted parakeet (Aratinga aurea) chick in a cage, confiscated from illegal wildlife trade, Brazil.

David Perpinan / Yellow chevroned parakeets (Brotogeris chiriri) and Peach fronted parakeets (Aratinga aurea), confiscated from illegal wildlife trade, Brazil.

Sylvain Cordier / Yellow crowned parrot (Amazona ochrocephala) at the clay lick, Tambopata Research Center, Peru

Sylvain Cordier / Yellow crowned parrot (Amazona ochrocephala) at clay lick, Tambopata Research Centre, Peru

Bruno D'Amicis / Yellow-fronted parrot (Poicephalus flavifrons) perched in tree, Zege peninsula, Lake Tana Biosphere Reserve, Ethiopia. Endemic to Ethiopia

Bruno D'Amicis / Yellow-fronted Parrot (Poicephalus flavifrons) in tree, Zege peninsula, Lake Tana Biosphere Reserve, Ethiopia. Endemic to Ethiopia

Bruno D'Amicis / Yellow-fronted parrot (Poicephalus flavifrons) two preening in tree, Zege peninsula, Lake Tana Biosphere Reserve, Ethiopia. Endemic to Ethiopia

Bruno D'Amicis / Yellow-fronted Parrot (Poicephalus flavifrons) in tree, Zege peninsula, Lake Tana Biosphere Reserve, Ethiopia. Endemic to Ethiopia

Brent Stephenson / Adult Yellow-crowned parakeet (Cyanoramphus auriceps) perched in a tree, showing the yellowish belly and forehead. Hawdon Valley, Canterbury, New Zealand, January.

Angelo Gandolfi / Yellow-faced Parrot (Alipiopsitta xanthops)- Bonito, Mato Grosso do Sul, Brazil, August

Neil Fitzgerald/ BIA / Yellow-fronted Parakeet (Cyanoramphus auriceps), North Island, New Zealand