Vulturecam Flies Amongst the Vultures (Narrated by David Tennant) - Earthflight - BBC One (via BBC)

ハゲワシ型の模型飛行機にカメラを搭載しハゲワシとともに飛ばして撮影されるBBCのnatural history film

Listening for a Safe Neighborhood - ScienceNOW

Scops olws listen little owl alarm calls to size the risk of nesting site.
ふくろうは他のふくろうの警戒声を参考にして巣の場所を決める

ScienceShot: Bird Masters of Illusion - ScienceNOW spends a majority of his time building and performing upkeep on an intricate structure called a bower to attract members of the opposite sex.

From the female bowerbird’s perspective, the objects all appear to be the same size, an illusion called forced perspective by filmmakers and photographers. Now, researchers who recorded the scene at the bowers of 20 males in northern Australia have shown that the better the gesso objects are arranged in this way, the better a male’s chances of mating with a female. The illusion may hold the female’s attention for longer than a poorly arranged

ニワシドリはあずまやの設計に騙し絵的な遠近法を使ってメスの注意をひきつける