Male Great frigatebirds inflate their massive gular sac on their throats to attract a mate : r/Awwducational
10 Weird Self-Inflating Animal Species - Listverse
Air Sac Rupture in Birds - Signs, Causes, Diagnosis, Treatment, Recovery, Management, Cost
Gular skin - Wikipedia
Brian Engh on Twitter: "These air sacs are also important for display and sound making! Air sacs have evolved into elaborated socio-sexual display structures in multiple groups of birds >independently< https://t.co/tZ0hfL1zbr" /
30 Magnificent Frigatebird Facts: Balloon-Throated Aerial Pirates (Fregata magnificens) | Frigatebird, Weird birds, Colorful birds
Creature Feature: Magnificent Frigatebird | Focusing on Wildlife
Magnificent Frigatebird
Marabou Stork ~~~~~~ Birds have two inflatable air … | Flickr
Art of Seduction: Some Birds' Exotic Breeding Attire Goes Beyond Flashy Feathers | Audubon
Secret Air Sacs Made This Dinosaur Extra Light - Scientific American Blog Network
Leptoptilos crumenifer - Monaco Nature Encyclopedia
Top 10 Animals with a Throat Pouch (Gular Pouch) - Feri.org
Emu
Top 10 Animals with a Throat Pouch (Gular Pouch) - Feri.org
10,700+ Frigate Bird Stock Photos, Pictures & Royalty-Free Images - iStock | Galapagos frigate bird
Real Balloon Animals: 6 Species That Blow Themselves Up
Magnificent Frigatebird Identification, All About Birds, Cornell Lab of Ornithology
Where the Wild Things Are: Greater Prairie Chickens - Iowa Natural Heritage Foundation
22 Of The World's Ugliest Birds | Bird Spot
Frigate Birds in the Galapagos – both Great & Magnificent – huh??? – EarthTreks – Ecuador, Galapagos and other sustainable travel worldwide!
Gular skin - Wikipedia
1,554 Magnificent Frigate Bird Images, Stock Photos & Vectors | Shutterstock
