Brown snake eagles, also known as crested serpent eagles, have a unique mating process. They mate in monogamous pairs and remain together throughout the year. Courtship displays consist of pairs soaring and calling together, with courtship flights that may include rolling and wing vibrating. The breeding season of brown snake eagles depends upon the area they live and they prefer to initiate breeding during the dry season.
Nesting and Egg Laying
The mating process of brown snake eagles involves the construction of large nests, which range from 1.2 to 1.8 meters (4 to 6 feet) in diameter. Both the male and female take part in nesting, which begins one to three months before the eggs are laid. The female lays one to three eggs, which are incubated for approximately 45 days.
| Nest Size | Incubation Period |
|---|---|
| 1.2 to 1.8 meters (4 to 6 feet) in diameter | 45 days |
Chick Care
Image source: Brown snake eagle By Derek Keats
The chicks hatch blind and naked, and are cared for by both parents. The parents provide food and protection for the chicks until they are able to fend for themselves.
Habitat Preferences
Brown snake eagles are known for their adaptability and can be found in a variety of habitats, including dry to wet forests, tea plantations, wooded savannas, and mangroves. They prefer the edges of forests where they can soar and effectively hunt. They can tolerate a great deal of disturbance to their habitat, but must have some kind of forested area in which to hunt and make a nest.
Physical Characteristics
In terms of physical characteristics, brown snake eagles are medium-sized raptors with a length ranging from 55 to 76 cm and a wingspan ranging from 109 to 169 cm. They can weigh anywhere from 420 to 1800 g. Adults appear overall dark brown with an almost black ‘hood’ on the head and neck, and have a prominent black crest when raised. The breast and belly are brown with white mottling, and the underside is brown with a distinctive single, broad, pale band across the tail and wings. The legs, eyes, and skin around the eyes and beak (lores) are yellow and bare. Juveniles are distinguished by a much more white plumage, especially around the head.
Ecological Importance
Brown snake eagles are apex predators and have no known predators. They are a good indicator of ecosystem health and are likely important in controlling snake populations since they are their main source of food. They also likely play a role in controlling the numbers of other small mammals and reptiles that they consume.
References:
– Animal Spot – Brown Snake Eagle
– Reddit – Bald Eagles Courtship Ritual
– Britannica – Serpent Eagle
– Animal Diversity Web – Brown Snake Eagle
