Brown

Arambourgiania

A sky-giant with a giraffe-long neck

Theropod

From raptors to robins: all theropod

Argentinosaurus

Patagonia's almost-unfathomable giant

Ceratopsian

Beaks, frills, and horns: Ceratopsia!

Lesser Scaup

Peaked crown, big rafts, true diver

Dickcissel

Prairie singer, South America traveler

Canvasback

Built for deep dives, born to roam

Veery

Spiral song, epic migration.

Gadwall

The "quiet" duck with a bright wing flash

Northern Bobwhite

Hear the whistle, save the fields.

Common Goldeneye

Hear the whistler, spot the gold eye

Anhinga

Spears fish, then sun-dries in style

Hammond's flycatcher

Hear it to name it: Hammond's Empid

Wood Duck

The tree-nesting duck with a leap

Black-Bellied Whistling Duck

The whistling "tree duck" with style

Northern Pintail

Pointed tail, planet-spanning migrant

Least Flycatcher

Hear "che-bek," find the flycatcher.

Diprotodon

Pleistocene giant of Australia

Thylacoleo carnifex

Australia's "lion" with a marsupial bite

Sivatherium

Shiva's horned giant of giraffids

Epidexipteryx

Display-feather dinosaur of Jurassic China

Gorgosaurus

Laramidia's long-legged tyrant

Hippopotamus gorgops

The high-eyed hippo of deep time

Magyarosaurus

A little titanosaur from an island world