Tag Archives: invasive

Mute Swan

The other day I came across a lone Mute Swan (Anseriformes: Anatidae: Cygnus olor) in a small lake in southeast Michigan. Unlike Trumpeter Swans, Tundra Swans, and other large white waterfowl that are native to North America, these birds are … Continue reading

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Random Plant: Tall morning glory

Although native to the American tropics, tall morning glory (Ipomoea purpurea, Convolvulaceae) has been spread throughout much of temperate North America by humans. Gardeners favor this plant for its big heart-shaped leaves, beautiful purple flowers, and its attractiveness to butterflies and … Continue reading

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Random Plant: Dame’s rocket

Dame’s rocket (Hesperis matronalis, Brassicaceae) is a common sight along many roadways and fields in the late spring and early summer. The large, attractive flowers have made it a favorite garden plant since its introduction to North America from Eurasia … Continue reading

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Brown anole

Native to Cuba and the Bahamas, brown anoles (Squamata: Polychrotidae: Anolis sagrei) were introduced to Florida in the 1970s.  Since then they have proven to be highly invasive, quickly becoming one of the most common lizards in the state. Living close … Continue reading

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House Sparrow

One of the most common birds in North America is the House Sparrow (Passeriformes: Passeridae: Passer domesticus). These prolific birds are found almost exclusively near human habitation, preferring to make nests along the edges of buildings. After their first introduction from Europe … Continue reading

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Boisterous European starlings

The other day I noticed a commotion from the top branches of a sugar maple here in southeast Michigan. At first it just sounded like random bird chatter, but then I noticed distinct calls from several different species. When I … Continue reading

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Random Plant: Autumn olive

I come across autumn olive (Elaeagnus umbellata, Elaeagnaceae) almost everywhere I go here in southeast Michigan and northwest Ohio. Most of the plants I see are young single-stemmed individuals like the one shown above. Sometimes I also see older multi-stemmed shrubs: … Continue reading

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