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Eastern Bluebird (TX)

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Species: Eastern Bluebird (Sialia sialis)
Location: Italy, TX
Status: This nest had a clutch of five eggs, but we believe a predator killed the incubating female so the nest attempt was unsuccessful.

 

Cam Highlights:


July 13 - Not quite what we had hoped to be watching in this nest box! We'll hope they don't stay long.

June 20 - The nest box was by visited today by this individual.

June 14 - This is the first activity we've seen at this nest box in weeks! Let's hope for another nest attempt!

May 15 - The male Eastern bluebird has been returning more frequently to the nest box with nest material, but until a female shows up, we cannot be sure if another nest attempt will occur.



May 10 - We aren't quite sure who is going to take residence in the box. A male bluebird reappeared after a week with no sightings, but a few hours later so did this large tarantula!

May 2 - After the nest was abandoned and cleaned out, another male bluebird has appeared in the box. We will see if he has a mate!

April 19 - After several days of not seeing the female incubating eggs, blue feathers were discovered below the nest box, suggesting that a predator took the female. Since male bluebirds lack the brood patch necessary for incubation, these eggs will be abandoned.

April 13 - Vocalizations from the incubating female are rare, but frequently the male has been observed giving a low warble outside the nest, especially during egg laying, to reassure her of his presence.

April 11 - Bluebirds tend to prefer nest sites that are in open areas with short surrounding vegetation. This avoids the danger of predators hiding in tall grass or nearby trees.

April 9 - Depending on the season, Bluebirds range from Ontario all the way to Arizona and down into Mexico and Central America.

April 8 - Each one of these eggs weighs about 10% of the adult female, (roughly 3.6 grams per egg). That is a lot of egg for one small bird to produce in five days.

April 7 - During the day, the female typically will spend an average of 10-15 minutes sitting on the eggs at one time, but her time spent off of the eggs is usually only a few minutes.

April 6 - The two week incubation process will be done by the female alone, the male will provide her with food.

April 5 - After some technical difficulties, the camera is finally back online, allowing us to see the clutch of five eggs.

March 25 - Females are the only ones who take part in building the nest. Although the male may be seen holding nest material, this is only part of a "nest demonstration display."

March 24 - Bluebirds' biggest competitors for nest sites are European Starlings and House Sparrows, but man-made nest boxes like this one have limited this competition.

March 23 - Bluebirds are usually monogamous, but typically 20% of a population is raised in a nest by a non-paternal male.

March 22 - Although bluebirds have the reputation of being sweet and docile, they actually will fight very intensely for a nest site or mate.

March 21 - In just a day, the female has brought in enough nest material to cover the floor of the nest and begin forming the nest cup.

March 20 - The female has begun building her nest, a good sign that she has accepted this box!

March 19 - Seeing the male and female in the box together illustrates how much brighter the male is compared to the female.

March 18 - The male shows off the nest site to his mate in hopes she will want to stay.

March 16 - A shot of a brilliant male Eastern Bluebird inside a new nest box in Texas.