The term "bird expert" can be replaced by synonyms such as ornithologist, avian specialist, bird biologist, bird scientist, and bird authority. Ornithologists are professionals who specialize in the study of birds, their habits, characteristics, and classifications. Avian Specialists focus on the healthcare and management of birds in zoos and rehabilitation centers. Bird Biologists study birds' behavior, ecology, and evolution. Bird Scientists offer knowledge and expertise in the biogeography, genetics, and ancient history of birds. Bird Authorities are professionals who have extensive knowledge and recognition in the field of bird study, and they may serve as consultants or advisors in bird-related projects. Synonyms for "bird expert" aim to provide accurate descriptions of people with a high level of knowledge of birds.