Spawn of a hybrid swarm? (Terpsiphone viridis x rufiventer)

..........A bizarre title for an undoubtedly beautiful bird.

Abuko is a small forest reserve in The Gambia which holds some Savanna woodland and an enclave of very rich moist Gallery forest.
African Paradise Flycatchers prefer drier Savanna woodland whilst the closely related Red-bellied Paradise Flycatcher prefers rain forest and moist Gallery forest. Normally these birds are separated by their habitat preference but at Abuko the species mix, interact and hybridise. The resulting hybrids are fully fertile and so breed with each other but also back-cross with the original two "parent" species producing what is termed a "hybrid swarm".

Here is the Wikipedia definition of a hybrid swarm: "A hybrid swarm is a population of hybrids that has survived beyond the initial hybrid generation, with interbreeding between hybrid individuals and backcrossing with its parent types. Such population are highly variable, with the genetic and phenetic characteristics of individuals ranging widely between the two parent types. Hybrid swarms thus blur the boundary between the parent taxa".