SYRINX COMPLEXITY: CORRELATION WITH BIRDS CALLS

Abstract

Ornithologists are very interested in identification and characterization of bird calls. Birds produce calls to convey information about food, announce the presence of a predator, identify family members, declare territorial boundaries etc. We studied sounds produced by different birds like White-breasted waterhen, White cheeked barbet, Ruddy shelduck etc. to characterize the bird calls using the prominent frequencies that are produced. The bird calls are qualitatively different for different birds and can clearly be identified in most of the cases. Comparison of sound produced by selected birds is implemented using the frequency distribution of sound. The frequency spectrum of sound is obtained using Fourier Transform technique implementing Fast Fourier Transform (FFT) employing standard mathematical software Mathcad.