How Big Is a Blue Bird?

Eastern bluebirds measure 16–21 cm (6.3–8.3 in) long, span 25–32 cm (9.8–12.6 in) across the wings, and weigh 27–34 g (0.95–1.20 oz). Male bluebirds have a bright head, back, and wings. Their breast is a brownish red. Females are lighter with gray on the head and back and some blue on their wings and tail.

How big is a bluebird house?

The dimensions of the floors in traditional bluebird boxes are typically 4-by-5 inches. The distance of the floor from the bottom of the entrance hole in a standard bluebird box is typically 5 to 6 inches.

How big do mountain bluebirds get?

Identification. The Mountain Bluebird is a medium-sized bird weighing about 30 grams with a length from 16–20 cm. They have light underbellies and black eyes. Adult males have thin bills and are bright turquoise-blue and somewhat lighter underneath.