Results 111 to 120 of about 205,543 (241)

A Feasibility Study of Using Unmanned Aerial Vehicles to Survey Avian Abundance by Using Audio Recording

open access: yes, 2015
Roadside counts are commonly used to assess songbird abundance, but they result in oversampling habitat edges and underrepresenting core habitats, areas of steep terrain, and wetlands.
Barr, Janine M., Wilson, Andrew M.
core  

Eoldist, a Web Application for Estimating Cautionary Detection Distance of Birds by Automatic Detection Systems to Reduce Collisions With Wind Turbines

open access: yesWind Energy
The installation of automatic detection systems (ADSs) on operating wind energy facilities is a mitigation measure to reduce bird collisions. The effectiveness of an ADS depends on a combination of parameters, including the detection distance of the bird,
Julie Fluhr   +29 more
doaj   +1 more source

The physiological basis of bird flight. [PDF]

open access: yesPhilos Trans R Soc Lond B Biol Sci, 2016
Butler PJ.
europepmc   +1 more source

Under the Wing of a Creature of the Night

open access: yes, 2017
Magnificent in its sheer power and beauty, this owl wing has a wingspan of 18 inches and measures 10 inches from the shoulder bone to the secondary feathers.
Chin, Julia M.
core  

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