Great Cormorant / Phalacrocorax carbo / 普通鸕鶿
Modern aeroplanes have winglets on their wings to reduce aerodynamic drag caused by wingtip vortices.
Maybe a similar principle applies to the primary flight feathers of large birds ….
Species: Great Cormorant / Phalacrocorax carbo / 普通鸕鶿
Thank you for your interest, views, faves, comments and awards ! This image was captured in Hong Kong 香港. (Better viewed on a larger screen.)
© This Image is under full copyright Rick C. Graham. © All rights reserved Rick C. Graham. © This image is subject to international copyright laws and may not be copied, downloaded, reproduced, transferred or manipulated without the express written permission of Rick C. Graham.
Great Cormorant / Phalacrocorax carbo / 普通鸕鶿
Modern aeroplanes have winglets on their wings to reduce aerodynamic drag caused by wingtip vortices.
Maybe a similar principle applies to the primary flight feathers of large birds ….
Species: Great Cormorant / Phalacrocorax carbo / 普通鸕鶿
Thank you for your interest, views, faves, comments and awards ! This image was captured in Hong Kong 香港. (Better viewed on a larger screen.)
© This Image is under full copyright Rick C. Graham. © All rights reserved Rick C. Graham. © This image is subject to international copyright laws and may not be copied, downloaded, reproduced, transferred or manipulated without the express written permission of Rick C. Graham.