SHORT COMMUNICATIONS 
805 
FIG. 2. Net placement at a nest site in Guelph. Ontario. Canada (Jul 2010). 
''iles had birds caught on the first visit in 2011. 
whereas three or four visits were necessary for the 
remaining sites. I terminated trapping on unsuc¬ 
cessful days at those sites requiring multiple visits 
either because the sun had set or 2 hrs had passed 
without any success. Pooling trapping effort (mins 
net deployed) over both years. 1 had an average 
effort of 125.38 min per bird caught. 
Mean (± SE) time to trap a bird at a site on 
successful trapping days was 38.08 ± 6.00 min. 
and 84.6% of birds trapped were captured within 
[ hr. 1 most often caught birds in the mid¬ 
afternoon (mean ± SE: 1528 ± 41 min EDT). and 
they were released 12.85 ± 1.20 min after 
capture. The average time ot capture may be 
more an artifact of study logistics than an 
indicator of the best time to attempt trapping. It 
was necessary to coordinate building access with 
property managers for six of the eight sites in 
2010 and. due to inherent limitations, these 
