The actual nest is compact, cup-like and rounded in shape with thick walls. It is composed of leaves, coarse grasses, bark strips, catkins and spiders' cocoons, all bound together and supported with long plant fibers, spider webs and wool. The inside of the nest is lined with finer grasses. The nests are built by both males and females but the majority of the work is done by the female. The nest is built within six to nine days.
Females have a clutch size of three to five eggs.
On the exterior they are smooth but non-glossy, pure white and unmarked. Once again, black-capped vireos show their uniqueness in that their eggs are unmarked while all other vireos have spotted eggs. The average size of the egg is 18 x 13 mm. Incubation time ranges from 14 -17 days. Both males and females take turns in keeping the clutch warm.