Appearance
Adult pygmy falcons are white below and on the face, grey above, and females having a chestnut back.There are white "eye spots" on the nape. Juveniles have a brown back, duller than adult females, and a rufous wash on the breast. The flight feathers of the wings are spotted black and white ; the tail is barred black and white.
Distribution
The pygmy falcon inhabits dry bush. The subspecies ''P. s. castanonotus'' occurs from South Sudan to Somalia and south to Uganda and Tanzania; ''P. s. semitorquatus'' occurs from Angola to northern South Africa. This range is estimated to have an area of 2.7 million km2, and the total population is estimated to be between 100,000 and 1 million birds.
Behavior
The flight is low and undulating. In size, pattern, and the habit of perching upright on an exposed branch or treetop, this species resembles some shrikes.The call is "a high-pitched ''kikiKIK'', repeated" or "a 'chip-chip' and a 'kik-kik-kik-kik'".
Defense
In Kenya, pygmy falcons nest in white-headed buffalo weaver nests, and the ranges of the two birds coincide. In southern Africa, they are found around red-billed buffalo weaver nests but predominantly nest in the vacant rooms of sociable weaver nests, which are large and multichambered—even if the sociable weavers still have an active colony in the nest. Despite being bird-eaters and bigger than sociable weavers, the pygmy falcons largely leave the latter alone, though they do occasionally catch and eat nestlings and even adults.References:
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