I.v. dep. n. and a. [nidus].
I. Neutr., to build a nest: halcyones hieme in aquā nidulantur, Varr. ap. Non. 145, 7; and Gell. 3, 10, 5; 2, 29, 4.—*
II. Act. aliquem, to make a nest for one: “contra rigorem hiemis vermiculos fetus sui nidulantur,” Plin. 11, 28, 34, § 98.