[3] It is a mostly green parrot with black-collared nape, brownish red chest, greyish black bill, yellow iris and grey feet.

The Dutch professor Theodore van Swinderen from the University of Groningen named the black-collared lovebird in 1820.

The black-collared lovebird is distributed across a wide range in African tropical closed rainforest.

[1] They hide high in the forest canopy and are characterized as being very shy.The black-collared lovebird lives mainly in mature and secondary subtropic lowlands.

Found commonly in primary forest trees or rarely in secondary growth, depending on the foliage level.

[2] The Agapornis swindernianus diet relies on fig seeds, African fruits Rauwolfia, Harungana, and Macaranga, and maize from the forest ground.

They are known to forage for oil palm at dawn in small flocks and feed on seeds and berries; insects, including caterpillars and beetle larvae.

The Agapornis swindernianus has rarely been recorded in East Africa, but is reasonably common, in Bwamba lowlands, Uganda.

The black-collared lovebird is evaluated as Least Concern on the IUCN Red List of Threatened Species.