1. • Airola, D. A. 2009. Status of purple martin populations in northern California: results of a pilot study to develop and apply a survey methodology. U. S. Fish and Wildlife Service, Sacramento Field Office, CA, USA.
2. • Airola, D. A. 2020. Life Under the Fast Lane: Ecology and Conservation of the Bridge-Nesting Purple Martins in Urban Sacramento. Special Publication No. 1, Central Valley Bird Club, Sacramento, CA, USA.
3. • Airola, D. A., B. Cousens, and D. Kopp. 2014. Accelerating decline of the Sacramento purple martin breeding population in 2014: what are the possible causes? Central Valley Bird Club Bulletin 17:12–22.
4. • Airola, D. A., and J. Grantham. 2003. Purple martin population status, nesting habitat characteristics, and management in Sacramento. Western Birds 34:235–251.
5. • Airola, D. A., and D. Kopp. 2018. Another substantial decline in the Sacramento purple martin nesting population in 2018: the role of construction disturbance and future threats. Central Valley Bird Club Bulletin 21:75–88.