Where am I getting all of this information about mating? The phenology calendar put out by the Aldo Leopold Center. Phenology is the study of life cycles based on seasons and climate for a particular area. The last year available is 2013 but the phenology is still accurate as it changes little from year to year. This information was gathered from midstate Wisconsin so I would guess that Southern Wisconsin where House In the Wood is located is a little earlier. I hope to start a House In The Wood phenology soon. It will take awhile to get one as it takes at least five years of records to get an average.
Here is the Phenology Calendar link if you would like to check for yourself.
House In The Wood is operated by Northwestern Settlement.