(105 ILCS 5/27-18) (from Ch. 122, par. 27-18)
    Sec. 27-18. Arbor and bird day. The last Friday in April is designated as "Arbor and Bird Day," to be observed throughout the State as a day for planting trees, shrubs and vines about public grounds, and as a day on which to hold appropriate exercises in the public schools and elsewhere tending to show the value of trees and birds and the necessity for their protection.
(Source: P.A. 92-85, eff. 7-12-01.)