![The mountain bluebird is a medium-sized bird weighing about 30 g with a length from 16–20 cm. They have light underbellies and black eyes. Adult males have thin bills and are bright turquoise-blue.](https://nguoinghe24h.com/wp-content/uploads/2024/01/Mountain-Bluebird-on-branch-768x401-1.jpg)
The mountain bluebird is a medium-sized bird weighing about 30 g with a length from 16–20 cm. They have light underbellies and black eyes. Adult males have thin bills and are bright turquoise-blue.
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Mountain Bluebird sitting on a branch outside.
![Mountain Bluebird sitting on a branch outside.](https://nguoinghe24h.com/wp-content/uploads/2024/01/Mountain-Bluebird-outside-768x401-1.jpg)
Mountain Bluebird sitting on a branch outside.
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Adult male Mountain Bluebird (Sialia currucoides) flying at Kamloops, Canada.
![Adult male Mountain Bluebird (Sialia currucoides) flying at Kamloops, Canada.](https://nguoinghe24h.com/wp-content/uploads/2024/01/Mountain-Bluebird-flying-768x401-1.jpg)
Adult male Mountain Bluebird (Sialia currucoides) flying at Kamloops, Canada.
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Mountain Bluebird, Sialia currucoides, male at nest hole at a cavity in a Ponderosa Pine.
![Mountain Bluebird, Sialia currucoides, male at nest hole at a cavity in a Ponderosa Pine.](https://nguoinghe24h.com/wp-content/uploads/2024/01/Mountain-Bluebird-nest-768x401-1.jpg)
Mountain Bluebird, Sialia currucoides, male at nest hole at a cavity in a Ponderosa Pine.
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Male Mountain Bluebird feeding a hatchling. Hopper Down the Hatch – A grasshopper is about to go down the hatch of a hungry mountain bluebird hatchling. Silverthorne, Colorado.
![Male Mountain Bluebird feeding a hatchling.](https://nguoinghe24h.com/wp-content/uploads/2024/01/Mountain-Bluebird-baby-768x401-1.jpg)
Bluebirds prefer to live in areas with plenty of available nesting sites, such as hollow trees or birdhouses.