by Darko » Sat Jan 06, 2018 12:35 pm
Hi Pajarita. It's working for the ones in front as well, because the birds who are behind,; while propelling their bodies forward, push some air forward and create tail wind for the birds in front. So is win win situation. That is why dolphins swim in front of moving boat because moving boat push some water forward and create wave so they can surf and save some energy . And I also know that from personal experience, I am Paragliding pilot and whenever we fly in formation we extend our glide.