Complex sentence: Most are arboreal species descending to the groundvto feed but some are terrestrial like the Quail-doves of south america or the Pheasant-pigeon of New Guinea they are found worldwide except from the poles and in a wide variety ofhabitats including urban.
Split into simpler sentences: Most are arboreal species descending to the ground to feed but some are terrestrial like the Quail-doves of South America or the Pheasant-pigeon of New Guinea. They are found worldwide except near the poles and in a wide variety of habitats including urban.