The first indication I had of the presence of red-billed firefinches in Windhoek was when Eckart Demasius sent me pictures taken at the house of his parents-in-law in Lessing Street, Eros, at about Christmas time 2005. It was not until March 2007 that one appeared in my Klein Windhoek garden although I found out from Dirk Heinrich that he had ringed the first of 21 in his garden, also in Klein Windhoek, in February 2005. The birds are generally to be seen in pairs although they are sometimes to be found individually or in small groups. Roberts VII describes them as being monogamous often retaining the same mate in successive breeding attempts and between years. When I have captured a male and female together I have recorded them as a "possible pair". However, on recapturing some of these birds I have found one male with a different "partner" and also two females with different "partners".