OwO what's this

Tightened jaw or clenched teeth

Forced smile that doesn’t reach the eyes

Lips pressed into a thin line

Brief flashes of glaring or hard eye contact

Rapid blinking or narrowed eyes

Looking the person up and down critically

Crossing arms tightly over the chest

Hands clenching or fidgeting

Picking at nails, skin, or clothing

Turning the body slightly away while still watching

Leaning back defensively

Sudden stiff posture

Shoulders tensing or rising

Small eye rolls or side glances

Tilting the head with a skeptical expression

Fake casualness (shrugging, acting uninterested)

Interrupting physical space subtly (stepping closer or inserting themselves)

Protective gestures toward a partner (hand on shoulder, waist, etc.)

Touching their own neck, collar, or hair nervously

Restless movements like tapping a foot or shifting weight

A delayed reaction before responding

a rare closeup of a black swift, found throughout north america and small parts of south america. swifts are rarely seen up close; they spend more of their life in air than any other species of bird - they eat, drink, mate and sleep while in flight. they are incapable of perching like other birds; they must cling to vertical surfaces.

but yeah, apparently completely true.  these birds stay aloft for as much as 10 months nonstop, feed on insects, spend more energy at night (when there aren’t warm thermals to ride) and at dawn and dusk climb to 10,000 ft altitude where the 30 min slow descent is probably when they catch their sleep.

they’re unusually long-lived for such active critters (20 yrs) and they may be limiting energy expenditure by being extremely aerodynamic and narrow bodied.  Also a single bird travels the distance of about 7 roundtrip journeys to the moon in its lifetime (>3 million miles).