Birds emit infrared radiation as part of their thermal regulation
Multiple studies demonstrate that birds emit thermal radiation and regulate their body temperature by modifying heat loss from specific appendages, a process frequently measured using infrared thermography.
The claim is a specific, empirical statement about avian physiology and biophysics (that birds emit infrared radiation for thermal regulation). Papers [2], [5], and [6] directly investigate avian thermoregulation using infrared thermography (which detects infrared radiation emitted by the body) and discuss mechanisms of radiative heat dissipation. Therefore, the claim is well supported by the provided literature.
A. McQueen, R. Barnaby, M. Symonds, G. Tattersall. Birds are better at regulating heat loss through their legs than their bills: implications for body shape evolution in response to climate. 2023. https://doi.org/10.1098/rsbl.2023.0373
The study uses infrared thermography to investigate physiological control of heat loss via bird bills and legs during thermal regulation.
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K. Crandell, Donald R. Powers, B. Tobalske. The role of plumage and heat dissipation areas in thermoregulation in doves. 2025. https://doi.org/10.1242/jeb.248200
The research examines how ringed turtle-doves use passive heat dissipation via radiation alongside other mechanisms to regulate body temperature.
David W. Stone, C. Gunn, A. Nord, R. Phillips, D. McCafferty. Plumage development and environmental factors influence surface temperature gradients and heat loss in wandering albatross chicks.. 2020. https://doi.org/10.1016/j.jtherbio.2020.102777
The paper analyzes surface temperature gradients and heat loss in wandering albatross chicks using infrared measurements.
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