I installed 4 A. Kestrel boxes this year for the first time near New Palestine IN. So far two are being used. The one which seems like it is a poor location, across the street from a Get-Go gas station has a pair and 7 eggs. I'm estimating hatch date around 12 April. The other box doesn't have eggs as of 2 days ago but a pair has been active around it for a week, with both birds in the box occasionally and the wood chips have an indentation ready for eggs I hope!!