Bird, An American Crow perched on a stone wall

American Crow

American Crows are fairly common and conspicuous throughout most of the lower 48 states outside the southwestern deserts.

Illustration of a brain showing the location of the amygdala


a roughly almond-shaped mass of gray matter inside each cerebral hemisphere, involved with the experiencing of emotions.


Binaural recording is a method of recording sound that uses two microphones, arranged with the intent to create a 3-D stereo sound sensation for the listener.

Pine trees in a forest in the Black Hills

Black Hills

Described as an “Island in the Plains,” the multiple-use Black Hills National Forest has an activity for everyone. Explore the many formations, canyons and gulches, open grasslands, tumbling streams, and deep blue lakes.

Bird, A Blue Jay perched on a tree branch

Blue Jay

The blue jay (Cyanocitta cristata) is a passerine bird in the family Corvidae, native to eastern North America.

Bird, A Carolina Chickadee sitting on a branch

Carolina Chickadee

The Carolina chickadee (Poecile carolinensis) is a small passerine bird in the tit family Paridae. Adults are 11.5–13 cm (4.5–5.1 in) long with a weight of 9–12 g (0.32–0.42 oz) and have a black cap and bib with white sides to the face. Their underparts are white with rusty brown on the flanks; their back is grey. They have a short dark bill, short wings, and a moderately long tail.

bird, a Carolina Wren singing on a tree stump

Carolina Wren

Carolina Wrens often come to backyards if food is available and will visit your suet-filled feeders in winter.

Bird - A Common Raven perched in front of red and orange foliage

Common Raven

Look for ravens anywhere from the outskirts of towns (particularly landfills) to foothill forests or scrub, and out to the deep woods of mountains and national parks. Look for a long-tailed black bird flying on long wings and easy, graceful wingbeats.

a crab clamp with a 1/4-20 thread screw

Crab Clamp

A crab clamp features a threaded jaw that grips onto just about anything.

Bird, A Dark-Eyed Junco standing on a log

Dark-Eyed Junco

You can find Dark-eyed Juncos by walking around open, partially wooded areas with understory for cover. Keep your eyes on the ground and listen for their twittering call or their trilling song.

Bird - a Downy Woodpecker perched on a branch

Downy Woodpecker

The downy woodpecker (Dryobates pubescens) is a species of woodpecker, the smallest in North America. Length ranges from 14 to 18 cm (5.5 to 7.1 in). Downy woodpeckers primarily live in forested areas throughout the United States and Canada.

Bird, An Eastern Bluebird sitting on a branch

Eastern Bluebird

You can find Eastern Bluebirds in open country with patchy vegetation and large trees or nest boxes.

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