Gorilla by Joseph Wu

 From https://www.youtube.com/@PaperCrafts1101

Vulture by Paul Jackson

 From Paul Jackson and Miri Golan, Origami Zoo

Frog by Mark Bolitho

 This is just the traditional Japanese frog, but with some extra folds to make toes. I should have started with a larger sheet of paper—toes were too delicate to fold at this size. From Mark Bolitho's Zoogami.

Dinosaur by Miri Golan

 Two very small slits needed for the arms. From Paul Jackson and Miri Golan, Origami Zoo.

Cat by Makoto Yamaguchi

Made with two sheets of paper (and a little bit of double-sided tape to connect them). From Makoto Yamaguchi's The Graceful [Art?] of Origami.

7x7 Spiral by Guy Petzall [NOT REALLY ORIGAMI!]

 From Ullagami, Volume One by Guy Petzall. 

Cardinal by Yoo Tae Yong

 From Makoto Yamaguchi's New Generation of Supreme Origami.

3x3 Building Blocks by Guy Petzall [NOT REALLY ORIGAMI!]

 From Ullagami, Volume One by Guy Petzall. (At least it has "gami" in the title.)

Flamingo by Itsuki Minami

From Makoto Yamaguchi's New Generation of Ultimate Origami.

Geometric Origami Pot/Box from Paper Kawaii

 Geometric pot (variation of "Verdi's Vase" by Verdi Adams—see https://origamibob.blogspot.com/2020/04/verdis-vase-traditional-chinese.html).

From the Paper Kawaii website: https://www.paperkawaii.com/geometric-origami-pot-box-tutorial/

Secret Stepper Box from Paper Kawaii

 Secret Stepper Box. Diagrams were sent to me as a gift for joining the mailing list for "Paper Kawaii" (https://www.paperkawaii.com/). Made from one 11"-by-7.333" rectangle and five 5" squares (plus some two-sided tape to hold it together)

Moose by Fumiaki Kawahata

 From Fumiaki Kawahata's Realistic Origami Animals.

Elephant by Scott Wasserman Stern

 From Scott Wasserman Stern's Outside the Box Origami.

Alpaca by Fumiaki Kawahata

 From Fumiaki Kawahata's Realistic Origami Animals.

Skull by Scott Wasserman Stern

 From Scott Wasserman Stern's Outside the Box Origami.

Lizard by Justin Nachsin

 From Tadashi Mori's YouTube channel at https://www.youtube.com/watch?v=ixSp1pwvfm4

Pig by Jo Nakashima

 From Jo Nakashima's YouTube page at https://www.youtube.com/watch?v=3gZR2Tz4WFY

Squirrel by Jo Nakashima

 Paper too small and too thick, ears too small, face kind of a mess. From Jo Nakashima's website: https://jonakashima.com.br/2018/09/24/origami-squirrel/

Katze/Cat by Anna Kastlunger

 From the Origami Austria website http://www.origamiaustria.at/en/diagrams.php. (Diagrams at http://www.origami.at/diagrams/katze.pdf.)

Hummingbird by Andrés Plazas

 Found online at https://www.origamispirit.com/2011/02/an-easy-to-fold-origami-hummingbird/