Chimney Swifts are Coming!

 

Chimney Swifts, those agile aviators of the sky, have intriguing nesting habits. The love to build flammable nests inside chimneys, along with other bird species.

• Chimney Swifts overwinter in the Amazon Basin in South America and return to nest across the eastern half of the USA each spring, and that includes the Midwest.
• These birds prefer dark and sheltered sites with vertical walls. While chimneys are their favored nesting spots, they also nest in: Natural sites: Hollow trees and tree cavities.
• Nest sites: Chimneys, wells, abandoned buildings, barns, silos, and outbuildings.
• Nesting Period: Chimney Swifts begin nesting in the spring or summer.
• The entire nesting process typically takes about two and a half months.
• These skilled architects weave their nests from small twigs, securing them to vertical surfaces using their glue-like saliva.
• Incubation lasts from 16 to 21 days, and the young fledge between 14 and 19 days after hatching.
• Overall, the nesting time frame for chimney swifts spans 30 to 40 days.
• Chimney Swifts have been nesting in chimneys for centuries, benefiting from the increased abundance of nest sites due to human development.
• Concerned birdwatchers can contribute by erecting Chimney Swift nest towers to provide additional nesting sites OUTSIDE their chimney.
• Chimney swifts are protected by the Migratory Bird Act so removal from a chimney is not an option. Only the nests can be removed after the fledglings have left the nest.

Keep birds out of chimney flues by having heavy duty stainless steel chimney covers installed.

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Marge Padgitt is the author of Wood-Fired Heating and Cooking and host of The Hearth and Home Show on the HearthMasters YouTube Channel. She can be reached at www.chimkc.com.