Variables of interest of the best models describing microhabitat (nest and surrounding) factors associated with mean P. torquans abundance in a brood.

(Variables included in the model for adjustment are shown in Table S5).*1: lower bound; *2: upper bound.a: Compared to Pi. sulphuratus species (brood sp reference); b: Compared to nest surrounded with vegetation (reference);c: Gledittsia triacanthos (tree sp reference);d: Compared to bush absence (reference level); e: Compared to grass absence (reference level); f: Compared to parasitic bird absence (reference level).Terms in bold indicate the variables of interest. Significant coefficients are underlined.Reference: brood sp: Brood species parasitized by P. torquans; o/c nest: nest surrounded or not by vegetation; tree sp: dominant tree species in the community; tree height: mean height of dominant tree; p/a bush: presence or absence of medium stratum; p/a grass: presence or absence lower stratum; grass height: mean height of lower stratum; parasitic bird: presence or absence of parasitic bird.