The beak and unfeathered skin as heat radiators in the Southern Ground-hornbill

Andries Janse Van Vuuren, Lucy Kemp & Andrew McKechnie
The avian beak is increasingly recognised as an important organ for thermoregulation, particularly in disproportionately large-beaked taxa such as toucans and hornbills. We used infrared thermography to test the prediction that Southern Ground-hornbills (Bucorvus leadbeateri) physiologically regulate the surface temperature of their beak (Tbeak), as well as that of their facial (Tfacial) and gular skin (Tgular) in such a way that these surfaces provide avenues for non-evaporative heat dissipation in warm weather. Our data, collected...
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2 downloads reported since publication in 2020.

These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?