How does the secretarybird hunt on the ground?
The secretarybird is a large raptor that hunts while walking on long legs across open habitats in sub-Saharan Africa.
Anatomy, feeding and habitat
It strides across grassland searching visually for insects, lizards, rodents and snakes. Powerful rapid kicks stun prey, while long legs help keep the head away from a dangerous snake. Despite its reputation, it is not exclusively a snake hunter. Its wings are strong and it may roost in trees. A bird's bill, feet, wings and feathers offer clues to feeding and movement, although one structure can serve several functions. Flight depends on muscles, body proportions and weather as well as wing size. Season, age and molt may change appearance.
Behavior, reproduction and conservation
Pairs range across broad areas and build large stick nests high in trees. Breeding success depends on rainfall, prey and fire-grazing patterns. Conversion of open land, power-line collisions and intensive land use are threats. Breeding timing relates to food and climate, and nest success from one year is not generalized. Light pollution, glass collisions, habitat loss and invasive species affect birds differently. Conservation includes feeding, resting and migration sites as well as nests.