Eastern Bluebird (TX)
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:

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July 13 - Not quite what we had hoped to be watching in this nest box! We'll hope they don't stay long.
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June 20 - The nest box was by visited today by this individual.
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June 14 - This is the first activity we've seen at this nest box in weeks! Let's hope for another nest attempt!
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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. |


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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! |

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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! |

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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. |

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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. |

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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. |

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

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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. |

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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. |

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

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

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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." |

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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. |

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

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

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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. |

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

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

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

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