I have also started tagging fat birds when I see them on iNaturalist.

Not everything I do makes sense.

https://www.inaturalist.org/observations?verifiable=any&place_id=any&field:Birds=fat

Observations

iNaturalist is a social network for naturalists! Record your observations of plants and animals, share them with friends and researchers, and learn about the natural world.

iNaturalist
I don't know much about birds. But fat round birds make me happy. So, I'm making a collection of the fattest birds I can find.
I've got a suggestion: kererū (Hemiphaga novaeseelandiae)