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More Puerto Rican Endemics
Jun 14, 2009 | by Kevin Loughlin
Everybody loves owls! The Puerto Rican Screech Owl is the only endemic owl on the the island. More often heard than seen, the male has a short, guttural trill heard typically in early morning or late evening. It is about the same size as the Eastern Screech Owl of North America, but it lacks the ear tufts, having a more rounded head.
![](https://notesfromthewildside.com/wp-content/uploads/images/yellow-shouldered_blackbird.jpg)
photos © Kevin Loughlin
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Nest parasitism by the Shiny Cowbird has been a major contributor to the decline of the Yellow- shouldered blackbird.