Mnemonic description of calls:
kwirr or churr used by both sexes (Wilkins and Ritchison, 1996)
cha (contact call)
What do we know about red-bellied woodpecker song?
Do not sing.
Drum about 19 beats /second (Short, 1982)
How and when is vocalization acquired?
It is thought that calls are not learned (Miller, Leonard, Shackelford, Brown and Connor,2020 )
How can we facilitate learning?
No recommendation since calls are likely not learned.
References
Miller, K. E., D. L. Leonard Jr., C. E. Shackelford, R. E. Brown, and R. N. Conner (2020). Red-bellied Woodpecker (Melanerpes carolinus), version 1.0. In Birds of the World (P. G. Rodewald, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.rebwoo.01
*******I haven’t seen next one . It’s an expensive book.*******
Short, L. L. (1982). Woodpeckers of the World. Monograph Series 4, Delaware Museum of Natural History, Greenville, DE, USA.
Wilkins, H. D. and Ritchison, G. (1999). Drumming and tapping by Red-bellied Woodpeckers: description and causation, Journal of Field Ornithology, 70(4):578-586.