Why is there such variation in the birds encountered as you go up or down a mountain? New paper in #ScienceAdvances examines how climate and ecological interactions drive bird distributions in mountains throughout the year: www.science.org/doi/10.1126/... 1/10 ⬇️

Finally got to witness a big gathering of Bramblings! Here around 15000! Before the video i saw them as a flow of 50 per second, for 5 minutes. Turn on sound!