This is a Red-collared Widowbird (Euplectes ardens), well camouflaged in this eucalyptus tree. The red collar actually does not show in this Cameroonian subspecies, but the long tail is very evident from this angle! You can also hear its distinctive rattling call over some loud Pied Crow cawing.
Here are a few links to others videos of some of the more common birds in the area.A gorgeous Fire-crowned Bishop (Euplectes hordeaceus) vocalizing near my house in Bandjoun in October 2010. I kept taking video and playing it back, and hearing his own voice annoyed him enough to come this close!
A frisky male Yellow-shouldered Widowbird (Euplectes macrourus) doing a territorial display near Kamgo in October 2010. He may have been responding to my pishing, as there were a lot of birds in the bushes. A Singing Cisticola (Cisticola cantans) is calling in the background.
A Black-crowned Waxbill (Estrilda nonnula) near Bandjoun in October 2010. These are very common around my house, and even though they are tiny, their bright red rumps are easy to spot as they fly away. A few Yellow-fronted Canaries (Serinus mozambicus) and abundant Gray-headed Sparrows (Passer griseus) are calling in the background - the latter call very similar to that of House Sparrows! The very light "tick" is the call that belongs to the waxbill.
The pair of Red-faced Lovebirds (Agropornis pullaria) that I posted about earlier during PST in Bafia in August. A Tawny-flanked Prinia (Prinia subflava) is vocalizing in the foreground.
Here's another (better) view of a male Red-collared Widowbird, also in Bandjoun.