This field season is off to a very slow start. As of yesterday there are now at least 14 males back at the field site, however, many of these males aren't building nests yet despite being around for several days. The other day I even observed a male courting a female with an empty box! This doesn't appear to have turned her away- she was still there the next day following her male around and reacting to my presence with agitation.
Usually nest building begins immediately after males arrive. The slow start may be due to the weather. Temperatures have barely made it past 60 this week and morning temperatures have still been in the 30s and 40s. The next couple days are supposed to be much warmer, so I expect things to take off quickly.
Nest started at A6 by the first male bk/wh, gn/al who moved across the field. This nest is now 3 inches tall.
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