PigeonColumba compressa

Life list

Every bird you hatch on this site, kept the way a birder keeps a life list: each species counts once, at its best sighting. Birds come only from runs you make yourself, in the Coop's two cages and in the Run box on Field Guide methods.

Reading your life list from this browser.

The six birds

A bird's species follows how many times smaller its model is than the model it was measured against. Its condition follows one of two rules, and every sighting below says which. A bird is drawn once you have seen it, in the best condition you have seen it in.

Share kept, for YOLOv8n in the Coop and every Field Guide run
A bird stays healthy while its model keeps at least 95% of the reference's score, and turns to bones at 60% or less.
Pigeon's line, for Pigeon in the Coop
Pigeon in the Coop has its own line: healthy at 90% accuracy or more with 75% pointing or more, bones at 60% accuracy or less, or 35% pointing or less.

  1. Rock Pigeon

    Columba livia

    Uncompressed, or less than 1.8 times smaller

  2. Mourning Dove

    Zenaida macroura

    1.8 to 3.5 times smaller

  3. Common Swift

    Apus apus

    3.5 to 7 times smaller

  4. Barn Swallow

    Hirundo rustica

    7 to 14 times smaller

  5. Ruby-throated Hummingbird

    Archilochus colubris

    14 times smaller or more

  6. Dodo

    Raphus cucullatus

    A broken model less than 1.3 times smaller