Mountain Bluebird

Mountain Bluebird

Construction Difficulty

moderate difficulty moderate

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Nesting Range

Mountain Bluebird Range
Source: Birds of the World

Nesting Habitat

  •  icon Grassland
  •  icon Mountain
  •  icon Open Woodland

Attach Nest Box To

  • Pole icon Pole

Known Nesting Period

Not Nesting
Some Nesting Occurrence
Nesting in Most of Range
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Source: Birds of the World

Nest Box Placement

Height Range From Ground

4ft
6ft
4–6 feet

Spacing Between Nest Boxes

300 feet

Facing

Entrance hole facing visualization
East

Nest Box Measurements

Entrance Hole Size

Entrance hole size visualization 1 9/16"

Nest Box Depth (inside)

Nest box depth visualization 9"

Nest Box Width and Length

Nest box width and length visualization 5 1/2" 5 1/2"

Helpful Tips

  • To avoid competition with House Sparrows, nest boxes should not be placed within a quarter mile of buildings. If House Sparrows become a problem, consider drilling a second entrance hole beside the first one (so that there are two separate but identical holes on the front panel) to enable bluebirds to better defend boxes from sparrows.
  • When placed along roadsides, boxes should face away from the road in order to avoid disturbance from vehicles.
  • Avoid placing nest boxes on utility poles, which can provide perches for potential predators, (e.g., American Kestrel).