BIOL 1902 Lecture Notes - Lecture 9: Arctic Tern, Turkey Vulture, Red Knot
5 Jul 2017
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Document Summary
When bats fly in the winter with turbines or something their lungs are exposed and they hemorrhage, the majority of the birds that migrate the most (champions) the arctic tern. When it goes back to its nesting ground- return. They travel 26. 738 km round-trip (16. 600 miles: scarlet tanagers go to brazil, they use fat to power their flight. Flapping is energetically very costly: and are using free lift, hawks and eagles soar using a thermal by differential heating. Called slotted: swallows migrate in daytime because their flight is very expensive and they need to feed as they fly. They are fast fliers: hummingbirds also migrate in the daytime they eat nectar and need to fly while flowers are on bloom. They burn a lot of energy too: sandpipers travel both at day and night. The north star is pretty huge: but moon and stars are not visible all the time.
