"We know of no other species in which such high-amplitude vocal signals are
directed to receivers in such close proximity. "
they obviously don't understand rugby!
On 2 Nov 2019, at 02:01, Prof. Roger K. Moore <r.k.moore@xxxxxxxxxxxxxxx>
wrote:
Extremely loud mating songs at close range in white bellbirds
https://www.sciencedirect.com/science/article/pii/S096098221931190X
