ornithologize
/ˌɔːnɪˈθɒlədʒʌɪz/(also ornithologise)
verb
[no object] To practise ornithology; to look for or study birds in the wild.
Origin
Mid 19th century; earliest use found in Spencer Baird (1823–1887), zoologist and scientific administrator. From ornithology + -ize.