Bird Identification Research Papers - Academia.edu (original) (raw)

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Separation of Common & Oriental Cuckoos in the field

• • by Clive F Mann
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  • Birds, Bird Identification, Bird Migration

A major challenge in the automated acoustic recognition of bird species is the audio segmentation, which aims to select portions of audio that contain meaningful sound events and eliminates segments that contain predominantly background... more

A major challenge in the automated acoustic recognition of bird species is the audio segmentation, which aims to select portions of audio that contain meaningful sound events and eliminates segments that contain predominantly background noise or sound events of other origin. Here we report on the development of an audio parameterization method with integrated robust frame selection that makes use of morphological filtering applied on the spectrogram seen as an image. The morphological filtering allows to exclude from further processing certain audio events, which otherwise could cause misclassification errors. The Mel Frequency Cepstral Coefficients (MFCCs) computed for the selected audio frames offer a good representation of the spectral information for dominant vocalizations because the morphological filtering eliminates short bursts of noise and suppresses weak competing signals. Experimental validation of the proposed method on the identification of 40 bird species from Brazil demonstrated superior accuracy and faster operation than three traditional and recent approaches. This is expressed as reduction of the relative error rate by 3.4% and the overall operational time by 7.5% when compared to the second best result. The improved frame selection robustness, precision, and operational speed facilitate applications like multi-species identification of real-field recordings.

• • by Allan Gonçalves de Oliveira and +2
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  • Machine Learning, Bird Identification, Computational Bioacoustics, Hidden Markov Model (HMM)

This paper treats all twentieth-century records of Westland Petrel off South America.

• • by Edward Brinkley and +2
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  • Ornithology, Marine Ornithology, Seabirds, Conservation Biology and Ecology of Seabirds and Islands

This paper treats a shearwater of genus Puffinus initially identified as P. tenuirostris off the coast of Virginia 18 January 1998. In 2014, after more study of this species and congeners, the authors believe the record should be treated... more

This paper treats a shearwater of genus Puffinus initially identified as P. tenuirostris off the coast of Virginia 18 January 1998. In 2014, after more study of this species and congeners, the authors believe the record should be treated as P. griseus/tenuirostris.

• • by Edward Brinkley
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  • Ornithology, Marine Ornithology, Bird Identification, Ornithology and Marine Biology

This paper treats observation of a Bulwer's Petrel in Chesapeake Bay 2 September 2006 following the passage of Tropical Storm Ernesto.

• • by Edward Brinkley
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  • Ornithology, Marine Ornithology, Seabirds, Conservation Biology and Ecology of Seabirds and Islands

This paper treats all reports of Cave Swallow in North Carolina through 1995.

• • by Edward Brinkley
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  • Ornithology, Bird Identification, Field Ornithology

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