The female chooses the nest site, typically in a depression or niche on sloping ground, rock face, or amid the tangled roots of an upturned tree. ... Occasionally, juncos nest above the ground on horizontal branches (rarely as high as 45 feet), window ledges, and in hanging flower pots or light fixtures.

What kind of nest does a Junco make?

Dark-eyed Juncos build an open cup nest on the ground, often in tall grass against or under a root ball or tree trunk. The nest is often hidden by overhanging vegetation such as ferns or other dense plants.

Are juncos territorial?

Juncos are generally monogamous (one male to one female) defending their territory during the nesting and breeding season. ... Chases occur and eventually the female will pick the male she decides is best. Males are very aggressive in defending their territories from other males.