Coveside Sparrow-Resistant Eastern Bluebird House hummingbird swing Each nesting box features an

Each nesting box features an internal predator guard and integrated exercise perch

This deicer is thermostatically controlled to operate only when the water temperature drops below freezing and turns off when the temperature rises to approximately 40 degrees Fahrenheit

Because of their diminutive size

Dimensions: 15

while a copper roof cap and trim on each edge complete the piece

Coveside Sparrow-Resistant Eastern Bluebird House hummingbird swing Each nesting box features anAttract beautiful, musical bluebirds to your yard while dissuading sparrow invaders with this Coveside Sparrow Resistant Eastern Bluebird House. The innovative design of this nest box effectively deters sparrows from roosting, while providing bluebirds a great housing option. Research from the University of Kentucky found that bluebirds will readily use a slot entry, while sparrows prefer a round hole. The 4" long and 1. 25" high, rectangular entry on