Facts about Brown-headed Nuthatch

1. 07

   In winter, Brown-headed Nuthatches roost communally in groups of up to six individuals huddled together inside a single cavity for warmth on cold nights.

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2. 06

   During breeding season, Brown-headed Nuthatches construct their nest cavities 5 to 60 feet high in pine trees, with entrance holes measuring approximately 1.25 inches in diameter.

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3. 05

   Cavity excavation in dead pine snags allows Brown-headed Nuthatches to create roosting holes where single birds sleep vertically wedged inside during winter nights.

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4. 04

   A Brown-headed Nuthatch's small body weighs only 9 to 12 grams, making it one of North America's tiniest nuthatches despite foraging along vertical tree trunks.

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5. 03

   The Brown-headed Nuthatch's nasal vocalizations include a distinctive rapid series of high-pitched calls that can reach frequencies above 8 kilohertz, allowing communication in dense pine forest canopies.

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6. 02

   Pairs of Brown-headed Nuthatches often remain together year-round and cooperatively raise fledglings with help from non-breeding helper birds from previous broods.

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7. 01

   Southeastern pine forests host the Brown-headed Nuthatch, which uniquely uses bark flakes as tools to extract insects from crevices.

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