Sources
Hummingbirds:
https://projectbeak.org/adaptations/wings_physics.htm
Migration Navigation
Text: https://www.scq.ubc.ca/the-compasses-of-birds/
Pictures: https://www.migraction.net/index.php?m_id=54&mid=130
https://alaska.usgs.gov/science/biology/shorebirds/barg_updates.html
https://www.sitnews.us/1007news/101007/101007_ak_science.html
https://dreamscapes.files.wordpress.com/2009/11/atlanticpuffin_en-us4066374449.jpg
https://www.greglasley.net/Images/Acadian-Flycatcher-0025.jpg
https://www.raywilsonbirdphotography.co.uk/Diary/June%202005.html
https://torontoist.com/attachments/Jaime%20Woo/2008_04_09_Goose.jpg
https://www.snailshell.com/sophie/animals/images/goose.jpg
https://membres.multimania.fr/cj68/hpbimg/W.Indigo%20bunting.JPG
The Mechanics of Flying
https://van.physics.illinois.edu/qa/listing.php?id=760
https://www.boeing.com/companyoffices/aboutus/wonder_of_flight/airfoil.html
https://wings.avkids.com/Book/Animals/Images/wing_diagram.gif