(Petrochelidon pyrrhonota)

In the spring of 2003, after the old bridge on Hwy 171 over the Kickapoo River was replaced with this new one, Cliff Swallows started breeding under the concrete structure. Cliff Swallows are one of 6 species of swallows breeding in Wisconsin. They are a highly colonial bird with a complex social life. They migrate to South America each fall and return to North America each spring, a round-trip journey of more than 16,000 miles. They winter in southern Brazil, Uruguay and Argentina. Each year they leave their wintering range and head north starting in early February. They arrive in Wisconsin in May, select mates, build complex domed mud nests, lay eggs, raise their young and start the long journey south again. Remarkably all of this is usually accomplished by the end of July!

The nests are repaired or new ones built each year. The birds forage together in groups gathering the right mud to carry back to the nesting site. A pair was observed bringing 44 mud pellets in a 30 minute period. The mud is carried in their bills. These nests, originally built on vertical cliff surfaces, are now more commonly seen on the undersides of concrete bridges and culverts, and less often on buildings and cliffs. The birds seem to have learned that their nests are more secure and protected attached to the more stable concrete surfaces. The interiors of these enclosed gourd shaped nests keep occupants warmer in cool weather and cooler in heat. There is considerable variation in the mud's composition and strength from colony to colony. Some nests last for 11 years and some don't make it through one season without falling apart.

These beautiful little birds, which weigh little more than one half ounce, eat, drink, and bathe, entirely in flight. Bathing in flight involves a quick hard splash in the water and flying on. They eat swarming insects. Many of these are farm crop pests such as corn borer moths and grasshoppers, and they also eat mosquitoes and many other kinds of insects.

To learn more, please visit The Museum of the Kickapoo.Open weekends from 10 to 4, July through October.

Thanks to Dr. Charles Brown, Tulsa OK, Village of Gays Mills, WI, and Community Conservation Inc., Gays Mills, WI
[captions]
Cliff Swallows breed throughout most of North America. They migrate over land to the Southern part of South America.
Gathering mud is a social activity.
A swallow feeding its young.

Sorry, but we don't have a picture of this historical marker yet. If you have a picture, please share it with us. It's simple to do. 1) Become a member. 2) Adopt this historical marker listing. 3) Upload the picture.

Show me all markers in:  Gays Mills, WI  |  Crawford County  |  54631  |  Wisconsin  |  United States of America

Gays Mills Sesquicentennial
Gays Mills Apple Orchards
Beauford T. Anderson
James Davidson
Soldiers Grove Origin
Black Hawk Trail
John McCulloch
Patrick Joseph Lucey
Rafting on the Mississippi
Trade Links - River Borne

• GPX
• KML
• LOC

Have you seen this marker? If so, check in and tell us about it.