1. Charadriiformes 343 sp; wetland habitats, worldwide
Skimmers, plovers, sandpipers, sheathbills, gulls, auks
Some migrate Arctic Tern – migrates >18,000 miles each year
Eat all different types of foods – fish, inverts, plants

2. Alcidae Auks, guillemots, auklets, puffins, murrelets
25 sp, 1 extinct (Great Auk)
Similar to penguins, not closely related – convergent evo
Puffins & auklets better at walking and flying (still not great), guillemots and murrelets better at swimming
Wing-propelled pursuit divers, eat schooling fish, krill, or crustaceans
Live entirely in northern hemisphere
Compact, streamlined bodies, short wings, webbed feet, very small tail

3. Drepanididae https://www.youtube.com/watch?v=nZyuqS-Kb7k
Hawaiian Honey Creepers
23 sp, 8 extinct
Called by native Hawaiian names
Thin bills – nectar-eaters
Finch-like bills – seed, fruit, or insect-eaters
Tongue is trough-like and brush-tipped
Live in wet and dry forests
Very diverse beaks and food

4. https://en.wikipedia.org/wiki/Charadriiformes
transcripts-and-maps/gulls-terns-plovers-and-other-shorebirds- charadriiformes
equilibrium/2011/nov/02/hawaiian-honeycreepers-tangled- evolutionary-tree