[retrac]

when pigeons are navigating their brainwaves oscillate around 150 - 200 Hz

a 60 fps computer display for pigeon vision is like a sequential slideshow it's much too slow to blur into what they would perceive as motion

many species of birds when they switch posture the motion is so fast it is imperceptible to the human eye it's like switching from one still frame to another

humans have perhaps 1/10th the temporal granularity that pigeons have

this leads me to the conclusion that if birds have a subjective experience it has a very different tempo than for humans or indeed most mammals

[dredmorbius]

Birdsong also occurs at a far greater rate / tempo than human ears are used to distinguishing. To fully appreciate most birdsong it must be slowed considerably. This is similar to many rodent calls (also rapid and high pitched), and contrasts with, say, whalesong, which must be sped up not only to raise it to a (human-) audible pitch, but for the patterns to be sensible to us.

Some human musicians and composers have played with similar themes, increasing or decreasing tempos by huge amounts. Examples of slow pieces include As Slow As Possible by John Cage, with a performance begun in 2001 due to end in 2640, and Longplayer by Jem Finer, which lasts 1,000 years. Musician and YouTube Adam Neely has an episode addressing the fastest tempos discernable by humans. At the upper range, the inter-beat range simply merges into a new soundform, at about 15--20 Hz, the lower bound of human audio perception.

[soupspaces]

> different tempo

Cats also seem to have faster reactions that might be overlooked by our perceptive frame rate (imo, tested after recording interactions and reinterpreting them). Beyond eyesight, I suspect human breathing can be too noisy for their ears (consistent hissing).