Cavity Nesting Birds Trail Monitors

Codorus provides nest boxes for many birds, including bluebirds, tree swallows and purple martins.  Throughout the year we monitor what is happening inside those boxes, contributing to a national database of information.  Volunteers are needed to inspect boxes weekly, April-October.  Generally,lly a volunteerunteer is given 10-20 boxes in a small area (less than a 1-milemile walk), which typically takes about 1 hour/week to monitor.