two cockatiels sitting together on a branch, popular aviary pets, tropical bird from australia

animal animals australia australian aviary aviculture bird birds branch cacatuidae cheek cheeked cheeks closeup cockatiel cockatiels cockatoo cockatoos common companion crest crested cute exotic funny gray grey hollandicus little male nymphicus ornithology parrot parrots pet pets popular portrait red sitting small together tree tropical tuft tufted two white yellow