The Invasive Bird, a House Sparrow - Critter 103

Saturday, September 6, 2025
After second look, we recognize a bird sitting on the fence is a House Sparrow. The bird is well known as invasive species in our areas.


Fig 01 - A House Sparrow, a visitor

Invasive species means that House Sparrows may compete and even kill native species in our areas. 

Several species could be killed by House Sparrows are:
- Eastern Bluebirds (Sialia sialis)
- Tree Swallow (Tachycineta bicolor)
- Carolina Chickadee (Poecile carolinensis)
- Northern Flicker (Colaptes auratus)
- Downy Woodpecker (Dryobates pubescens)


Fig 02 - A corner of city

In our urban area, we may see aggressiveness of House Sparrow to kill birds in their nest, then take over the nest.


Fig 03 - A house Sparrow

Do you see a House Sparrow in your areas?

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5 comments:

  1. i think that sparrows are such cute birds, i did not know this about them. i guess this is nature "the circle of life"!! i get them in one of my bird houses every year, they nest and have babies. i have never noticed any negative behavior!!

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  2. Hello,
    Yes, the House Sparrows are not native to the USA. They seem to be all around the world. Thank you for linking up and sharing your post. Take care, have a great weekend.

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  3. ...I'm sorry to hear that it is invasive for you!

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  4. I don't think we see them here but I have learned something about them now. Thanks for the info!

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