These dates are specifically chosen to coincide with the nights of brightest moonlight and greatest nightjar calling frequency. These are important dates to use so survey conditions are standardized across all regions of the Nightjar Survey Network. Contact nightars@nightjars.org with questions.

2020 Survey Dates:

Window 1: FL, TX, and low elevation AZ and NM: 1 April to 14 April

Window 2: Any location in the country: 30 April to 14 May

Window 3: Areas north of AZ, FL, NM, and TX, and for high elevation areas in the Northern U.S.: 29 May to 13 June

Window 4: North and western states (WA, OR, ID, MT, WY, Dakotas, MN): 27 July-11 Aug

Arizona specific dates can be found here.

Be sure to time your surveys after the moonrise. You can find moonrise information, survey instructions, and data sheets here.

Thank you to all the new and returning participants!