![Male Great frigatebirds inflate their massive gular sac on their throats to attract a mate : r/Awwducational Male Great frigatebirds inflate their massive gular sac on their throats to attract a mate : r/Awwducational](http://i.imgur.com/AHSPjGP.jpg)
Male Great frigatebirds inflate their massive gular sac on their throats to attract a mate : r/Awwducational
![Frigate Birds in the Galapagos – both Great & Magnificent – huh??? – EarthTreks – Ecuador, Galapagos and other sustainable travel worldwide! Frigate Birds in the Galapagos – both Great & Magnificent – huh??? – EarthTreks – Ecuador, Galapagos and other sustainable travel worldwide!](https://earthtreks.ca/wp-content/uploads/2016/03/Galapagos-Resized-16-1024x683.jpg)
Frigate Birds in the Galapagos – both Great & Magnificent – huh??? – EarthTreks – Ecuador, Galapagos and other sustainable travel worldwide!
![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" / 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" /](https://pbs.twimg.com/tweet_video_thumb/FOnw18xXIAMQUze.jpg)
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" /
Brian Engh on Twitter: "Whoa check out the loooooong the neck of this baby sauropod 🦕 dinosaur @TaliaMLM showed me at @ROMtoronto! JUST KIDDING ITS A SWAN 🦢 Seriously tho, compare the
![🔥 A frigatebird, a bird, which male bird's inflatable neck bag, red is used to attract an inflatable bag for the bird of a companion. : r/NatureIsFuckingLit 🔥 A frigatebird, a bird, which male bird's inflatable neck bag, red is used to attract an inflatable bag for the bird of a companion. : r/NatureIsFuckingLit](https://external-preview.redd.it/wTBoq7wNjcMGfWTwb1G9JKYJWMCVHokZ1qkrkevTYRw.png?format=pjpg&auto=webp&s=cd4ffff3ddf2b8f981e23653a5e2d81fc0e233ce)