After two broods this summer, Mama is ready for round three. She started a third nest a couple of days ago and already has it pretty much completed. Looks like it still needs a little lining, but it’s ready for eggs.
Click photos to enlarge.
In Oklahoma heat is often a problem for third and fourth nesting attempts. This summer is much milder and wetter than the past couple. More rain means more bugs, but I guess bugs aren’t really a problem on the reddirt hill since I supplement mealworms for the bluebird family. I have my box mounted to a piece of 3/4-inch electrical conduit that I slide over a slightly smaller piece of steel rebar driven into the ground. This makes it easy to move the box if necessary. I keep it in the afternoon shade of a small Live Oak tree, adjusting the position as the sun moves north and south during the breeding season. There are some commercial sun sun shields available or one built. Heat can be a killer of both eggs and babies.
If we allow 13 days for incubation, this clutch should hatch on 17 July. We will be in Sedona, AZ when these eggs hatch. So photos may be a bit late.
Total bluebirds fledged from this nest site since 2009 is 55.
2014 Third brood summary
- Nest building iniated 26 June
- Nest completed 29 June
- First egg 30 June
- Second egg 01 July
- Third egg 02 July
- Fourth egg 03 July
- Incubation begins 04 July