Here is the full list of all 33 Pixel Puzzles 2: Birds achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Complete All Puzzle
Complete Puzzle 1
Complete Puzzle 5
Complete Puzzle 10
Complete Puzzle 16
Complete Puzzle 17
Complete Puzzle 15
Complete Puzzle 21
Complete Puzzle 11
Complete Puzzle 24
Complete Puzzle 25
Complete Puzzle 20
Complete Puzzle 12
Complete Puzzle 8
Complete Puzzle 22
Complete Puzzle 14
Complete Puzzle 9
Remove the crabs
Complete Puzzle 6
Complete Puzzle 23
Complete Puzzle 2
Complete Puzzle 19
Drob 100 crabs in 1 session
Complete Puzzle 18
Use location power
Use ghost power
Use Rotation power
Complete Puzzle 13
Complete Puzzle 7
Complete Puzzle 4
Drop a crab in the net
Complete Puzzle 3
Complete DL-TV Puzzle