Appearance
The Yellow-collared Lovebird is a mainly green small parrot about 14.5 cm long. Its upper parts are a darker green than its lower surfaces. Its head is black, and it has a bright red beak and white eyerings. Yellow on the breast is continuous with a yellow collar and an expansion of yellow over the nape of the neck. Male and female have identical external appearance.
Reproduction
The Yellow-collared Lovebird brings nesting material in its beak to a tree cavity for their nest. The eggs are white and there are usually four to five in a clutch. The female incubates the eggs for about 23 days and the chicks leave the nest about 42 days after hatching.
Cultural
The blue mutation was originally found in wild birds in the 1920s and is the oldest colour mutation known in the lovebird genus. The other mutations are a result of selective breeding in aviculture, such as two cobalts which will make a mauve . Various color mutations exist, including blue, cobalt, mauve, slate, dilute slate, violet, lutino and albino. The latter two are mutations where some color genes do not get passed on from the previous generation. In the case of the lutino the green color gene is not passed on. In the case of the albino, none of the color genes are passed on. The albino mutation is the latest color mutation.White eye-rings lovebirds, of which black-masked is part of, are also less aggressive in comparison to the peach-faced lovebird.
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