Several weaver species regularly build nests with long entrance tubes, see list below. Note that occasionally a nest is started and the tube not finished to full length.
Baya Weaver
Black-throated Weaver
Nelicourvi Weaver
Dark-backed Weaver
Black-necked Weaver
Spectacled Weaver
Gola Malimbe
Cassin’s Malimbe
Red-bellied Malimbe
Ibadan Malimbe
Rachel’s Malimbe
Red-vented Malimbe
Red-headed Weaver
Often weaver species with long tubed nests are built by solitary, monogamous weavers. This group of weavers usually consists of a pair and they build the nest together. In some malimbes, a group of birds help build the nest. The long tube probably reduces the risk of predation, but does not stop all predators. In the polygnous weavers it is usually the male that builds (although the female adds nest lining) and males want to build many nests in a breeding season, rather than spending energy on building nests with long tubes.
A few weavers do not normally build long entrance tubes on their nests, but may occasionally do so:
White-browed Sparrow-weaver,
Streaked Weaver, and
Sakalava Weaver.
Longer than usual tubes could occasionally be found in any weaver nest.
