That's right today we are listening to the somewhat grating sounds of SeaGulls, aka Gulls. Most of my information came from these two blog posts: 

https://earbirding.com/blog/archives/4538

https://earbirding.com/blog/archives/3994

We divide gulls into four groups, based on their long calls: High Yelpers represented by the Herring Gull (6:30), Low yelpers represented by California Gulls (7:45) Slow Squealers represented by the Ring-Billed gull (9:02) and Nasal represented by Franklin's Gull (10:30). 

Feel free to email me at [email protected] or through Facebook at BirdingByEarPodcast. 

Other helpful links include:

https://www.allaboutbirds.org/news/

https://academy.allaboutbirds.org/peterson-field-guide-to-bird-sounds/

https://xeno-canto.org/

Music is Called Good Thoughts by Diana Taylor from https://taketones.com/track/good-thoughts