birdcall

n.

鸟叫声，学鸟叫；鸟笛；

Bird call
Bird call
Bird-call.
UNDER INVESTMENT IN EDUCATION
BIRD ACCOMMODATION HAVING A BIRDCALL
Slidably adjustable birdcall
Slidably adjustable birdcall
Annual and diurnal phenology of birdcall activity above the German Bight
Similarity-based birdcall retrieval from environmental audio
Improved Spectral Representation for Birdcall Based on Fractional Fourier Transform
Imitation of typical birdcall causes ocular perforation by a tawny owl attack.
Ornithology and Ontology: The Existential Birdcall in Jean Rhys's Wide Sargasso Sea and Anna Kavan's Who Are You?
Ornithology and Ontology: The Existential Birdcall in Jean Rhys's and Anna Kavan's