We posted invasive species of House Sparrow that could kill and even takes over nest of native birds.
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The House Sparrow may bully flock birds, and very aggressive towards our native songbirds, and will kill them.
If House Sparrow catch them in a birdhouse, the aggressive Sparrow will poke their eyes out, or both.
Then he throws the bird’s eggs out of the box or even murder their babies with his strong beaks.
Fig 02 - Flock of birds
He will have several nests going with different females at the same time. then multiply prolifically.
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