While looking through the viewfinder I could see the breath coming out of its bill whenever it called - but it was mostly angled away. I really hoped it would turn towards me, and at one point it sure did! The light was cloudy bright, and coming from behind the subject as you can see from the hints of rim lighting here and there. Photographing with the light coming from behind me did not show the breath, interestingly.
Canon 7DII + 500mm f/4 II + 1.4TC III, manual exposure, evaluative metering, 1/400s., f/5.6, ISO 1600, natural light, handheld, small crop for comp, eliminated an oof part of sumac at left edge, NR to the BG.