Seasonally, bluebirds eggs in April and May (possibly in March for southern states). After the nest is complete, a bluebird may begin laying immediately or after a “bluebird honeymoon.” She will usually lay one egg per day, often in the mornings. Therefore, it is important to consider these things and more when monitoring or hosting your bluebirds.
Tag: eggs
Songbird Eggs May Survive Short Periods of Freezing Weather – Here is Why
There are many systems in place that ensure the survival of bird eggs survival during short snaps of freezing weather. These systems include the mother bird’s ability to detect egg temperature with her brood patch, the ability for older embryos to produce heat, and the insulative nature of the nest.