Eastern Bluebird

A small, colorful thrush about 6-7 inches long. Males have bright blue upperparts and a rusty-red breast, while females are more subdued with grey-blue wings and tails.

Dull brownish-grey to slate grey base. Depending on lighting and angle, it may show subtle blue structural edging characteristic of the species.

The distal portion is pennaceous and interlocked, while the proximal base shows plumulaceous, downy texture for thermoregulation.

Thin, flexible, and dark-colored rachis. Barbs are densely packed at the tip and become loose and airy toward the feather base.

Smooth and matte on the upper surface, with a soft, silky feel at the downy base.

Wing covert or secondary feather. The size and location within a nesting box suggest it was shed or used as lining inside the nest.

Small size, muted greyish tones with potential for structural blue reflectance, and its specific context within a Cavity Nester box.

Open woodlands, orchards, gardens, and parklands. They frequently utilize man-made nest boxes in suburban and rural edge habitats.

Year-round resident in much of the Eastern United States, with migratory populations in the North that move south in winter.

Insectivorous predator that helps control pest populations; serves as an indicator species for the health of open grassland habitats.

Western Bluebird (similar color), Mountain Bluebird (more blue), or Tufted Titmouse (greyer overall).

The Eastern Bluebird was once in decline but became a symbol of conservation success thanks to the efforts of volunteers installing 'Bluebird Trails.'

Symbolically represents happiness and spring. Within indigenous cultures, bluebirds were often messengers. Feathers have no modern commercial use in the US.

Look for these feathers in or near nest boxes during April-July. Grey-brown feathers with a blue cast are a diagnostic 'smoking gun' for Sialia.

Fair to Good. Shows some signs of wear and fraying on the trailing edge, likely due to abrasive activity inside the nest or nesting material.