Efficient Guide to Well Read/Pest Control/To All The Squirrels...
This is an efficient route to complete all four of these achievements. Please let me know if I have missed any critters or if there is any mis-information on here, I tried the best I could but may have missed a few. As far as specific locations if you can't find a critter in a zone, use Wowhead.
Start in Scholomance:
Read:
-The Invasion of Draenor
-The Founding of Quel'Thala
-Icecrown and the Frozen Throne
-Kel'Thuzad and the Forming of the Scourge
-Kil'jaeden and the Shadow Pact
-Sargeras and the Betrayal
-The Birth of the Lich King
-The Dark Portal and the fall of Stormwind
-The Lich King Triumphant
-The Scourge of Lordaeron
-The Seven Kingdom
-War of the Spider
-Old Hatreds - The Colonization of Kalimdor
-Rise of the Blood Elves
Fly to Ironforge and walk to the Hall of Explorers (69,19):
Read:
-Arathor and the Troll Wars
-Charge of the dragonflights
-Civil war in the plaguelands
-Ironforge: the Awakening of the Dwarves
-Rise of the Horde
-The Alliance of Lordaeron
-The Battle of Grim Batol
-The Old Gods and the Ordering of Azeroth
-War of the Three Hammers
Kill:
-Rat
Fly to Loch Modan:
/Love:
-Ram
Fly to Searing Gorge:
/Love:
-Lava Crab
Kill:
-Fire Beetle
Fly to Stormwind and walk to the Royal Library (75,31):
Read:
-Aegwynn and the Dragon Hunt
-Aftermath of the Second War
-Beyond the Dark Portal
-Civil War in the Plaguelands
-The Guardians of Tirisfal
-The Kaldorei and the Well of Eternity
-The New Horde
Walk to (36,72) in Stormwind:
Read:
-The War of the Ancients
Walk to (35,63) in Stormwind:
Read:
-The World Tree and the Emerald Dream
Fly to Goldshire:
/Love:
-Cat
-Fawn
-Deer
-Rabbit
-Squirrel
-Sheep
Fly to Westfall and walk to the Sentinel Hill Inn (52,53):
Read:
-The Last Guardian
/Love:
-Chicken
Kill:
-Mouse
Fly to Eastvale Logging Camp and walk to (85,69):
Read:
-Lethargy of the Orcs
Fly to Swamp of Sorrows:
/Love:
-Scalawag Frog
-Toad
-Huge Toad
Kill:
-Moccasin
-Snake
Fly to Booty Bay and walk to (27,77):
Read:
-The Sentinels and the Long Vigil
-Empires' Fall
-The Twin Empires
-Wrath of Soulflayer
-Sunwell - The Fall of Quel'Thalasm
Take the boat to Ratchet and walk to (62,38):
Read:
-Archimonde's Return and the Flight to Kalimdor
Walk to (61,39):
Read:
-Mount Hyjal and Illidan's Gift
-Exile of the High Elves
Walk to the Barrens:
/love:
-Gazelle
-Prairie Dog
-Swine
Kill:
-Adder
Walk to Durotar:
/love:
-Hare
Walk to Ratchet and fly to Un’Goro Crater:
/Love:
-Parrot
Fly to Darnassus and walk to (66,76):
Read:
-The Betrayer Ascendant
Hearth/Port to Dalaran and walk to the Dalaran Sewers:
Kill:
-Underbelly Rat
Fly to Howling Fjord:
/Love:
-Skunk
-Shore Crab
-Fjord Penguin
-Fjord Turkey
-Scalawag Frog
Kill:
-Fjord Rat
-Devouring Maggots
Fly to Grizzly Hills:
/Love:
- Grizzly Squirrel
-Mountain Skunk
Fly to Zul’Drak:
Kill:
-Zul’Drak Rat
Fly to Storm Peaks and walk to Halls of Stone/Halls of Lightening area:
Kill:
-Gold Beetle
Walk to north-eastern area of Storm Peaks:
/Love:
-Glacier Penguin
Fly to Sholazar Basin:
/Love:
-Sholazar Tickbird
Fly to the Nexus and zone inside, go to last bosses room:
Kill:
-Crystal Spider
Leave Nexus, fly towards Borean mainland:
/Love:
-Borean Frog
-Tundra Penguin
-Borean Marmot
-Steam Frog
Fly to Dragonblight:
/Love:
-Arctic Hare
Fly to Azjol’Nerub:
Kill:
-Roach
Hearth/Port to Dalaran and take the Shattrath portal:
/Love:
-Ewe
Fly to Hellfire Peninsula:
Kill:
-Scorpion
Fly to Zangarmarsh:
/Love:
- Small Frog