Sinaloa Wren

Credit: Bettina Arrigoni

Sinaloa Wrens were unknown in the United States until 2009 when one was found in Arizona.

Sinaloa Wrens are brown all over. Their heads are brown and they have white eyebrows and underneath those, a black streak behind the eye. They also have white throats and striped, white cheeks. They have dark streaking on their breasts. Their tail is rufous-brown with dark barring.

  • Thryophilus sinaloa
  • Length: 4.6 – 5.5 in (12 – 14 cm)
  • Weight: 0.38 -0.70 oz (11 – 20 g)
  • Wingspan: 9 in (23 cm)


Sinaloa Wrens are usually residents along the west coast of Mexico, but they also visit Arizona.

Habitat And Diet

You can find Sinaloa Wrens in deciduous forests, usually around edges and clearings and nearby undergrowth and shrubbery.

Sinaloa Wrens often forage amid vegetation on the ground looking for insects. High up in the trees, they also glean insects from foliage.

Sinaloa Wren Sounds:


Nests of Sinaloa Wren are made primarily of grass and twigs that are woven together and seemingly “draped” over a slender tree branch. It has one entrance and is often built next to colonies of ants or wasps. The female lays four to five eggs. The incubation period is unknown.

Fun fact:

Sinaloa Wrens build their nests near aggressive ant or wasp nests to provide some protection.

They were formerly known as “Bar-vented Wrens”.