Swifts are little airborne birds, expenditure the bulk of their life flying. These birds have very small legs and not at all resolve willingly on the ground, perching instead just on upright surfaces. A lot of swifts have extended swept-back wings that look like a crescent or a rebound. There are 98 classes worldwide and 6 classes which occur in Bangladesh.
- Himalayan Swiftlet Aerodramus brevirostris
- Silver-backed Needletail Hirundapus cochinchinensis
- Brown-backed Needletail Hirundapus giganteus
- Asian Palm-Swift Cypsiurus balasiensis
- Fork-tailed Swift Apus pacificus
- Little Swift Apus affinis
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