Tag: eurasian tree sparrow

Eurasian Tree Sparrows Are Aggressive Toward Native Birds: Observations and Info

There is another nonnative sparrow in North America that is less familiar to us. This is the Eurasian tree sparrow, a cousin of the invasive and highly aggressive house sparrow.

Illustrated chart to differentiate house sparrows from eurasian tree sparrows - both are invasive species, but the are different. Look close at this chart, and you can learn how to tell the difference using indicators such as differences in their caps, cheek and the presence of a beard or bib.

Eurasian Tree Sparrows vs. the House Sparrow’s – Nonnative Twins

If you live in certain areas in the US, particularly St. Louis, MO, you didn’t see two male house sparrows in your birdhouse, you saw its invasive cousin, the Eurasian tree sparrow. There are distinct features such as a dot on the cheek and a full chestnut colored cap that can help you tell the difference. And both male and females have the same patterns.