Project Noah

Project Noah is a tool to explore and document wildlife and a platform to harness the power of citizen scientists everywhere.

Join Project Noah Today

House Wren

Troglodytes aedon


House wrens are feisty and pugnacious animals considering their tiny size. They are known to occasionally destroy the eggs of other birds nesting in their territory by puncturing the eggshell. Females that sang more songs to conspecifics that were simulated by playback lost fewer eggs to ovicide by other wrens. Female bird song in this species is therefore thought to have a function in competition and is not only displayed by males.[9] They are also known to fill up other birds' nests within its territory with sticks to make them unusable.[].


Seen at Mt Diablo


This wren had a nest full of babies .She was cleaning up the nest. A fecal sac can be seen in her mouth.

No species ID suggestions


Hema 7 months ago

I love these birds.I have seen a Bewicks Wren and Rock Wren so far,

Hema 7 months ago

thanks. The wren was cleaning up her nest full of babies. You can see a fecal nest in her mouth

maplemoth662 7 months ago

A very pretty photo....

California, USA

Lat: 36.60, Long: -120.41

Spotted on Jul 9, 2018
Submitted on Jul 9, 2018

Related spottings

winterkoninkje (Troglodytes troglodytes) Wren Eurasian Wren Winterkoning

Nearby spottings

Garden Spider Red-tailed Hawk Unknown spotting Green Heron