Assertion: vireo's nest | /r/HasProperty | grinnell
Facets:
Source sentences:
text: Foraging occurs at all levels of the canopy, but appears to be concentrated in the lower to mid-strata, particularly when pairs have active nests (Grinnell and Miller, 1944; Goldwasser 1981; Gray and Greaves 1984; Salata (1983), Miner (1989).