Abstract: An improved instrument is provided for simulating melodious and harmonious sounds of singing birds, such as tropical varieties and the sounds of nighttime insects and small animals, such as the Puerto Rican "coqui". This instrument includes a construction of a plurality of axially aligned air chambers, each having an opening with beveled edges having a bevel angle of 30.degree. into the interior of the respective air chambers, so that upon movement of the instrument through the air by swinging and rotating, a wide variety of melodious and harmonious sounds are produced resembling those of birds and nighttime insects and animals. The plurality of air chambers may be cylindrical, conical or a combination of cylindrical and conical air chambers, and further each air chamber may be sub-divided into two, three, or four sub-chambers, wherein each sub-chamber also includes one opening having beveled edges with a bevel angle of 30.degree. into the interior of the sub-chamber.

Abstract: A musical whistle instrument is provided having resonant chambers, at least one of which may be filled with a fluid, and a tubular member for introducing pulses of air into the resonant chamber. This structure produces many musical sounds imitating melodious bird sounds of various bird species. A method for operation of the device is also described.

Abstract: An instrument is provided for simulating melodious sounds of singing birds, such as tropical varieties, as well as the sounds of nighttime insects and small animals, such as the Puerto Rican "coqui". This instrument includes a construction having an air chamber with an elongated aperture and a small aperture for providing air circulation through the air chamber upon relative movement in air. The structure may be in the form of a rocket or satellite configuration. The method of operating this melody bird instrument is further provided.