The Sparrow Swap project is a citizen-scientist driven study of the House Sparrows that colonize nest boxes, particularly those previously established by bluebirds. People who monitor nestboxes can report their observations on what happens in a nestbox and in nearby nextbox after managing for house sparrows.

Participants can opt to participate in one of two ways:

  • Remover– Remove house sparrow eggs and/or nest and make 3 follow up visits to the nestbox and 3 of its neighbors.
  • Swapper– Swap in fake house sparrow eggs and make 3 follow up visits to the nestbox and 3 of its neighbors.

Data collected from follow-up visits will help evaluate the effectiveness of house sparrow management strategies.

In the past,  house sparrow eggs were sent to the Museum. Due to the high volume of houses sparrow eggs we received between 2015-2018 (over 2,000!), we are not asking folks to send in house sparrow eggs in 2019.  If you want to read more about the work we have done in the past with house sparrow eggs sent to the museum, check out our blog page or send us questions at sparrowswap@ncsu.edu.   Our hope is that the eggs will eventually be analyzed for contaminants as part of research to determine whether house sparrow eggs are a useful indicator of human exposure to environmental contaminants.

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