The Silver-backed Needletail (Hirundapus cochinchinensis) is a remarkable bird species that has captured the attention of bird enthusiasts and nature lovers alike. This intriguing creature not only boasts unique physical features but also plays an essential role in its natural habitat. In this article, we will delve deeper into the fascinating world of the Silver-backed Needletail and explore its presence in the breathtaking country of Nepal.
Characteristics of the Silver-backed Needletail
Belonging to the Apodidae family, the Silver-backed Needletail is a swift-like bird that stands out due to its distinctive physical features. These birds are medium to large in size, measuring between 20-25 cm (7.9-9.8 inches) in length. They flaunt a robust build with comparatively short wings and a square-shaped tail.
As their name suggests, these needletails possess a silver-grey color on their upper back parts, which strikingly contrasts their dark body undersides. Moreover, their wings exhibit an iridescent blue sheen when observed under sunlight.
Moving on to their behavioral traits, Silver-backed Needletails are known for their incredibly swift flight patterns that reach speeds as high as 130 km/h (80 mph) and their aerial agility while capturing insects in mid-air. Their soaring abilities have made them an exceptional sight for birdwatchers across Asia.
Presence in Nepal
The enigmatic Silver-backed Needletail can be found across various countries within Asia, including Pakistan, India, China, Myanmar, Vietnam, and Thailand. However, Nepal serves as a particularly important habitat for these birds due to its diverse terrain consisting of sub-tropical forests and mountainous geography.
In Nepal, you can observe these swifts primarily in the subtropical broadleaf forests situated within the lowland Terai and Siwalik hills. They prefer elevations below 1000 meters (3280 feet) and are typically seen during the months of April through October, as they migrate to southern regions during winter months.
Conservation Status
Although the Silver-backed Needletail has been marked under the "Least Concern" category by the IUCN Red List, it is crucial to maintain efforts focused on preserving their habitat. Alongside habitat degradation, pesticide usage has increasingly posed a threat to their population, as it diminishes their insect prey.
In conclusion, the Silver-backed Needletail remains an enigmatic treasure that highlights Nepal's rich biodiversity. Efforts to conserve this species and protect its natural habitat will help ensure that future generations can witness its swift flights and captivating aerial acrobatics.