Eastern Bluebird (CCES1, KY)
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| Species: Eastern Bluebird (Sialia sialis) Location: Caldwell County Elementary School, Princeton, KY Status: These eggs were abandoned. View comments View donor list |
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May 1 - This is our last image of the
female. For unknown reasons, it appears that this nest has been
abandoned. Hopefully she will attempt to nest again soon! |
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Apr. 27 - Females that are incubating have been observed spending from 4% to 27% of their day sitting on eggs. |
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Apr. 26 - The low temperatures at the
nest site may be contributing to delayed hatching. There is still
a good possibility that the eggs will hatch in the next few days. |
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Apr. 24 - The female returns to the nest with wet feathers, perhaps from rainfall or a mid-afternoon bath. |
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Apr. 22 - Preening is very important because it maintains the appearance of the bird as well as ensures efficient flight. |
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Apr. 20 - Since hatching begins approximately two weeks after the last egg is laid, we should see nestlings very soon! |
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Apr. 18 - Bluebirds can be
prolific breeders. It is not uncommon for a breeding pair to have
multiple clutches in the course of one season. |
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Apr. 16 - A nice shot of the
female resting as she continues to incubate the eggs.
Fortunately, the nest cam is back online after experiencing technical
difficulties over the weekend. |
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Apr. 12 - Bluebirds are cavity nesters that commonly choose tree cavities or man-made nest boxes for breeding. |
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Apr. 11 - During incubation, it
is necessary for the female to turn the eggs to ensure even heat
distribution and prevent the young embryo from adhering to the
inside of the shell. |
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Apr. 9 - One of the most
recognizable songbird species, the Eastern Bluebird is known to inhabit
most of the U.S. east of the Rocky Mountains, but populations have been
observed in southern Arizona and New Mexico. |
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Apr. 7 - It has been two days
since the last egg was laid, so it is likely that the clutch is
complete. The average number of eggs in a bluebird clutch is four
eggs, so this nest is typical for the Eastern Bluebird. |
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Apr. 5 - At about 10:30 this
morning, the fourth egg appeared! The size of the clutch can vary
with the season as spring clutches tend to be larger than clutches laid
in the summer. |
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Apr. 4 - The arrival of the
third egg came at around 8:30 am! Interestingly, each egg that is
laid in a sequence usually weighs more than the egg that was laid
before. |
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Apr. 3 - Our first image of the
second egg at approximately 8:00 am this morning! The typical
clutch can range anywhere between three to seven eggs. |
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Apr. 2 - The first egg was laid
today at about 7:30 am! Bluebirds are synchronous layers, meaning
that the female will lay an egg about every day until the clutch is
complete. |
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Mar. 30 - The female has spent
more time in the nest box today! The "cupping" seen in this image
is an element of nest building and a possible indication that eggs are
on the way! |
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Mar. 29 - Our first glimpse of the female in the nest box
this season. Research has shown that bluebirds prefer nest boxes
containing nests from previous seasons. |