Besra
Besra
Also known as: Little Sparrowhawk
Accipiter virgatus
Quick Identification guide
Quick Identification guide
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Besra exhibits dark gray upperparts with fine rufous barring on its underparts and throat
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Possesses yellow eyes and a short, hooked beak that is typical of accipiters
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Displays broad wings and a long, barred tail with a slightly rounded appearance
Description
Ever noticed a flash of slate-gray zipping through the trees? That little speedster might be a Besra! Known for their incredible agility, these birds of prey can navigate the dense forest like a pro, with tight turns and sudden stops that would make any pilot jealous. Their hunting prowess is unmatched as they silently swoop down to snatch an unsuspecting meal. Talk about stealth and skill wrapped in one feathery package!
The Besra can weigh between 80to170grams and be from23to38centimeters tall.
The Besra (Accipiter virgatus) typically lives around 8 to 10 years in the wild. In comparison, the closely related Eurasian Sparrowhawk (Accipiter nisus) has a similar lifespan, also reaching 10 years in optimal conditions. Like other small to medium-sized raptors, the Besra faces higher mortality rates in its first year, primarily due to predation and environmental factors. Captive individuals may live longer, benefiting from regular food supply and absence of predators. Overall, the Besra's lifespan aligns closely with other members of the Accipiter genus.
Did you know?
Most popular questions about Besra
How to recognise a Besra?
Besra identification guide
The Besra is a medium-sized hawk distinguished by its sleek body and relatively long tail. Generally, the upperparts are a slate gray color, which turns slightly more brownish in some individuals. Underneath, it features intricate barring across a white or buff-colored belly and pale chest. It has short, rounded wings with fine dark banding that becomes more prominent in flight. Its eyes are distinctively yellow or orange. Male and female Besras are quite similar in appearance, making it challenging to distinguish between them. However, females are slightly larger and may have a broader appearance compared to males. This sexual dimorphism is typical among birds in the Accipiter genus, where size is often the primary indicator of sex. Juvenile Besras differ from adults in that they display more streaking than barring on their underparts. Their plumage tends to be browner overall, lacking the sharp contrast observed in adults, and their eye color is often a paler yellow, darkening with maturity. As they age, their plumage pattern matures, and they gradually acquire the definitive adult coloration. In the wild, Besras are often seen quickly darting through dense woodland. Watch for their agile flight and listen for their distinctive, high-pitched calls. Seasonal plumage variations are usually minimal, although their plumage might appear more worn towards the end of winter.
Breeding and nesting habits of the Besra
Mating Behaviors
The Besra exhibits fascinating courtship displays which often involve aerial acrobatics and vocalizations to attract a mate. These social behaviors intensify during the breeding season, typically observed in the spring and early summer. Males may perform swooping flights and engage in short chases to impress females, a vital part of their mating rituals.
Nesting Details
Besras prefer nesting in secluded, forested areas but can adapt to nearby gardens with dense shrubbery and tall trees. They tend to build their nests high up in tree branches using twigs and leaves, ensuring the structures are robust and well-concealed. Sites selected for nesting provide protection from predators and offer proximity to abundant food sources. Home gardeners can encourage Besra nesting by cultivating native plants and maintaining natural tree cover.
Eggs and Chick-rearing
Typically, a female Besra will lay two to four eggs during each breeding season. The incubation period lasts about 28 to 32 days, with both parents involved in nurturing duties. After hatching, the chicks are altricial, requiring constant care and feeding from parents. Over several weeks, the young gradually grow more independent, eventually fledging at around six weeks of age, although parents continue to support them until they can hunt alone.
What does a Besra like to eat?
Natural diet
The Besra, also known as the Accipiter virgatus, primarily feeds on a diet rich in small birds and mammals when in the wild. This includes sparrows, doves, and various types of rodents, which they hunt with precision thanks to their swift flight and sharp talons. Their keen eyesight allows them to spot prey from a considerable distance. In addition to birds and mammals, the Besra may occasionally consume large insects, especially during the summer months when these are more abundant. Their diet largely depends on the availability of prey within their habitat, with some change in targets depending on the season.
Bird feeders
The Besra is not a common visitor to bird feeders as they are raptors and primarily predators of live prey. However, their presence near feeders is usually to hunt the smaller birds attracted to these food sources. For bird enthusiasts looking to help the Besra in a non-invasive way, maintaining a feeder with fruit-bearing shrubs nearby might inadvertently assist these hawks by attracting the smaller birds they naturally prey upon. It is generally advisable not to attempt attracting raptors like the Besra using traditional feeders, as their dietary habits do not align with seeds or suet offerings.
Select the perfect feeder for besra
To entice the Accipiter virgatus to your backyard, opt for a sturdy platform or tray feeder that provides ample space for this medium-sized raptor to perch comfortably. These feeders should be well-secured to ensure stability, reducing disturbances as Besras hunt for their meals.
Offer irresistible snacks for besra
While Besras primarily hunt live prey, you can attract them by offering protein-rich bird food blends such as Bird Buddy seeds that include nuts and suet. These nutrient-dense foods simulate the high-energy meals they consume in the wild, making your feeder an appealing stopping point.
Strategically place your feeder
Position feeders at a height of 8-12 feet off the ground, nestled in tree branches if available, to mimic their natural hunting grounds. This height facilitates easy access for Besra while keeping other animals at bay, ensuring a more exclusive dining experience for your target birds.
Enhance habitats with seasonal insights
Consider the seasonal behaviors of Besras when planning your feeding strategy. During their active breeding months, typically from March to June, maintaining food availability will foster repeat visits as they stay near their nesting sites. Adjust your offerings in response to the shifting dietary needs throughout the year.
Create a water oasis for besras
Install a bird bath or a small pond to complement your feeding area. Fresh water not only aids hydration but also attracts Besras for hygiene purposes, providing them with a place to bathe and preen. Keep the water clean and shallow to accommodate the bird's needs while ensuring safety.
Where can you find besras?
Primary habitat
The Besra (Accipiter virgatus) predominantly occupies forested areas across its typical range, which spans from the Indian subcontinent to Southeast Asia and parts of East Asia. These birds prefer subtropical and tropical climates, thriving in dense, humid woodlands and mixed forests, where they can hunt and nest among the trees.
Additional range
While the Besra is mainly associated with forest environments, it showcases adaptability by inhabiting plantations, rural farmlands, and even urban parklands. This flexibility allows them to exploit a variety of environments, although they prefer locations with sufficient vegetation to provide cover and hunting opportunities.
Do they migrate?
The Besra (Accipiter virgatus) is a bird of prey found predominantly in South and Southeast Asia. It is largely a resident species, meaning it does not typically undertake long migrations like some other raptors. However, there can be some altitudinal movements depending on the season and geographical location. In regions such as the Himalayas, the Besra may descend to lower altitudes during the winter months. This altitudinal migration is not extensive, as these movements are generally local and limited to finding more favorable conditions, such as warmer temperatures and better food availability. The Besra inhabits a range of environments, including forests, plantations, and wooded areas, often adapting its movements according to local conditions rather than engaging in long-distance migration. Overall, while the Besra may exhibit some localized movement in response to seasonal changes, it does not follow a specific migratory route that is typical of many other bird species. Its adaptability enables it to thrive in both permanent and seasonally adjusted habitats across its range.
What is the role of besras in nature and how to protect them?
Conservation status
The Besra is currently considered to be of "Least Concern" according to the IUCN Red List, indicating it is relatively common. It inhabits a wide range across Asia, benefiting from a broad distribution. Key threats include habitat loss due to deforestation and urbanization. Conservation efforts focus on protecting habitats and monitoring populations to ensure they remain stable. While not currently vulnerable or endangered, ongoing habitat protection is crucial for the species' continued well-being.
Ecological role of besras
Its role in the ecosystem
The Besra (Accipiter virgatus) plays a vital role in maintaining ecosystem balance through its predatory habits. As a bird of prey, it primarily feeds on insects, small birds, and mammals. This helps control the population of potential agricultural pests and supports the health of plant communities by reducing the pressure from herbivorous insects. By keeping these populations in check, the Besra indirectly aids in agricultural productivity and forest health. While Besras are not primarily known for seed dispersal or pollination, their role in nutrient cycling is significant. As predators, their feeding habits contribute to the breakdown of organic material. Through their droppings, they help in returning essential nutrients back to the soil, fostering plant growth and soil fertility. The presence of Besras in an ecosystem indicates a healthy environment since they require abundant prey and mature trees for nesting. They also influence the behavior and distribution of other species, as their presence can deter smaller bird species from congregating, thereby indirectly affecting seed dispersal patterns and plant community dynamics. Through these multifaceted ecological interactions, the Besra supports the integrity, balance, and resilience of its habitat.
How to help protect besras
Preservation tips
Habitat preservation strategies
Protecting the Besra's habitat is crucial for its survival. Support local and international conservation organizations prioritizing forest protection and restoration, as these birds thrive in dense forests. Engage with policymakers by advocating for stricter land use regulations that prevent deforestation. Contribute to land trusts that acquire and protect areas where Besra is known to nest and hunt. Participate in tree-planting initiatives that focus on indigenous species, helping restore degraded habitats to support wildlife diversity.
Community science initiatives
Community science plays a vital role in understanding and conserving the Besra. Participate in bird monitoring programs, such as local bird counts, to collect data on Besra populations and distribution. Join community-led awareness campaigns to educate others about the importance of conserving this species. Use online platforms to report sightings, contributing to nationwide databases that help track their movement and habitat utilization. Engage with schools and community groups to lead educational workshops, instilling a sense of responsibility for the environment in future generations.