Breeding Males, But Not Females, Have Elevated Androgen Receptor Expression in the Northern House Wren (Troglodytes Aedon), a Temperate Songbird with Female Song
John Yoo, Douglas C. Weiser, Timothy Adam Liddle, Elizabeth George, Chelsea M. Haakenson, Nora H. Prior, Cara A. Krieg, Gregory F. Ball, Karan J. Odom
The study compares androgen receptor and related gene expression in male and female northern house wrens across seasons, finding males have higher expression in song nuclei, suggesting testosterone's greater role in male song.
bioRxiv · Sep 5, 2025 · PreprintAnimal Behavior & Cognition