Swee

Its song is a loud swee swee chit chit weedleoo, and its call is a hard chink.
[edit] Footnotes ...

Waxbill, Yellow-bellied aka Swee Waxbill Estrilda melanotis Found: Africa
Photographed by Duncan Noakes
Genus Hypargos
Twinspot, Peters's Hypargos niveoguttatus Found: Africa
Phototgraphed by: Sandy Cole at Butterfly World in Florida ...

The calling changes when the male arrives with food and it becomes a staccato "toot". The female responds with a "swee" call. Pairs sometimes allopreen (preen each others feathers), using touch to strengthen or establish a pair bond.

See also: Purple, Mannikin, Fly, Violet-ear, Sparrow