The bird known for its distinctive whistle-like call at night in the UK is the nightingale. This small songbird is renowned for its beautiful and varied song, which often includes melodious whistling notes. Nightingales are most active during the breeding season, and their calls can be heard primarily at dusk and throughout the night, making them a notable feature of the nighttime soundscape.
The red-breasted nuthatch is a bird that sounds like a penny whistle. It is a small songbird found in the western and northwestern parts of the United States as well as in Alaska and Canada.
Birds that whistle at night are the mockingbird, the whippoorwill, and the black crowed night herons. The great horned owl and some swallows also whistle at night.
Depends on where in the world you are, the question needs to be more specific.
A MockingJay
Yes. Some bird sounds can be easily described (e.g. an owl) wherease others are more difficult to describe, using words. Words like squeak squawk whistle hoot screech peep can be used to describe bird sounds.
The one with highest frequency. The limit of human hearing is 20khz. Sounds can be made at much higher frequencies.
a lyre bird can imitate 20 sounds of species of birds and some sounds of human objects
Sounds with short wavelengths are typically high-pitched. Short wavelength sounds have higher frequencies, which are perceived as higher pitches by the human ear. Examples include bird chirping, whistle blowing, or a squeaking mouse.
A bird whistle
All birds can learn to varying degrees. Some can talk, some whistle or mimic other sounds. Some only sing their normal song. Birds learn their songs from their parents and others in their flock. A captive bird will imitate you or other sounds they hear repeatedly.
High frequency sounds include a whistle, a bird chirping, or a ringing phone. Low frequency sounds include thunder, a bass guitar, or a large drum.
The talking bird is a parrot. Other birds that make human sounds are the parakeet and mynah bird.