May 1st of each year is hereby established as "Bird Day" in Oklahoma, to be commemorated in such manner as the Societies for the Preservation of Wildlife may prescribe, from time to time. Laws 1951, p. 356, § 2.
Okla. Stat. tit. 25, § 87
Bird day
Official source: Oklahoma Legislature. Reproduced from public-domain Oklahoma statutes; confirm against the official source for the current text. Not legal advice.