Where does “kolom goos” come from?

kolom goos (Cornish) comes from Dutch kolom, from Bengali কলম, from Classical Persian قلم, from Arabic قَلَم, from Ancient Greek κάλαμος, from Proto-Indo-European ḱolh₂-m-, from Proto-Indo-European kolH- — to raise, to lift, to build; awn.

kolom goos (Cornish): pigeon, wood pigeon