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Our newest paper is out today in Auk: Ornithological Advances: "Divergence in plumage, voice, and morphology indicates speciation in Rufous-capped Warblers (Basileuterus rufifrons)". By @AD_basileuterus @JRobertoSosa @ColSciSimpson @Steph_Doucet & @DMennill. #ornithology [1/6]
![Our newest paper is out today in Auk: Ornithological Advances: "Divergence in plumage, voice, and morphology indicates speciation in Rufous-capped Warblers (Basileuterus rufifrons)". By @AD_basileuterus @JRobertoSosa @ColSciSimpson @Steph_Doucet & @DMennill. #ornithology [1/6]](https://pbs.twimg.com/media/EYd6nZ0XQAI9sE0.jpg "Our newest paper is out today in Auk: Ornithological Advances: \"Divergence in plumage, voice, and morphology indicates speciation in Rufous-capped Warblers (Basileuterus rufifrons)\". By @AD_basileuterus @JRobertoSosa @ColSciSimpson @Steph_Doucet & @DMennill. #ornithology [1/6]")
The taxonomy of Rufous-capped Warblers is controversial: eight subspecies exhibit divergent plumage colour and songs, and consequently they are sometimes treated as two separate species. [2/6]
![The taxonomy of Rufous-capped Warblers is controversial: eight subspecies exhibit divergent plumage colour and songs, and consequently they are sometimes treated as two separate species. [2/6]](https://pbs.twimg.com/media/EYd75zZXsAAlff6.jpg "The taxonomy of Rufous-capped Warblers is controversial: eight subspecies exhibit divergent plumage colour and songs, and consequently they are sometimes treated as two separate species. [2/6]")
Using field data, museum specimens, and sound archives, we compared the body size, plumage colour, and songs of all eight Rufous-capped Warbler subspecies. The project was led by Dr. Alana Demko @AD_basileuterus. [3/6]
![Using field data, museum specimens, and sound archives, we compared the body size, plumage colour, and songs of all eight Rufous-capped Warbler subspecies. The project was led by Dr. Alana Demko @AD_basileuterus. [3/6]](https://pbs.twimg.com/media/EYd9n8NX0AA6hOF.jpg "Using field data, museum specimens, and sound archives, we compared the body size, plumage colour, and songs of all eight Rufous-capped Warbler subspecies. The project was led by Dr. Alana Demko @AD_basileuterus. [3/6]")
We found that seven subspecies comprised two groups with different colour, songs, and body size: the northern, white-bellied rufifrons group and the southern, yellow-bellied delattrii group. The eighth subspecies, salvini, showed similarity to the rufifrons group. [4/6]
![We found that seven subspecies comprised two groups with different colour, songs, and body size: the northern, white-bellied rufifrons group and the southern, yellow-bellied delattrii group. The eighth subspecies, salvini, showed similarity to the rufifrons group. [4/6]](https://pbs.twimg.com/media/EYd9rnfXYAM2DDx.jpg "We found that seven subspecies comprised two groups with different colour, songs, and body size: the northern, white-bellied rufifrons group and the southern, yellow-bellied delattrii group. The eighth subspecies, salvini, showed similarity to the rufifrons group. [4/6]")
We conclude that Rufous-capped Warblers comprise two separate groups, which improves our knowledge of Neotropical avian biodiversity. You can read our paper here: https://bit.ly/3dVDlPQ [5/6]
![We conclude that Rufous-capped Warblers comprise two separate groups, which improves our knowledge of Neotropical avian biodiversity. You can read our paper here: https://bit.ly/3dVDlPQ [5/6]](https://pbs.twimg.com/media/EYd-j_0WoAIsXGs.jpg "We conclude that Rufous-capped Warblers comprise two separate groups, which improves our knowledge of Neotropical avian biodiversity. You can read our paper here: https://bit.ly/3dVDlPQ [5/6]")
By the way: The warbler illustrations in our paper were created by Lauren Szucki @LSzucki, an undergraduate student @UWindsor and a founding member of our Science Meets Art @SMArtuWindsor group. #SciArt [6/6]
![By the way: The warbler illustrations in our paper were created by Lauren Szucki @LSzucki, an undergraduate student @UWindsor and a founding member of our Science Meets Art @SMArtuWindsor group. #SciArt [6/6]](https://pbs.twimg.com/media/EYeBMQnWAAMZkrk.jpg "By the way: The warbler illustrations in our paper were created by Lauren Szucki @LSzucki, an undergraduate student @UWindsor and a founding member of our Science Meets Art @SMArtuWindsor group. #SciArt [6/6]")
