A number of wild pets are seasonal, weather or time-dependent so check this out if you’re missing a few rare wild battle pets. There’s also a video of all these pets and locations.

UnbornValkyr Rare Wild Battle Pets
Unborn Val’kyr – there is always one spawn up in each zone of Northrend

Weather

Arctic Fox Kit

Arctic Fox Kit – The Storm Peaks – snowing

Baby Ape

Baby Ape – Jaguero Isle, The Cape of Stranglethorn – raining

Silithid Hatchling

Silithid Hatchling can be found at the Gaping Chasm / Noxious Lair, Tanaris – sandstorm

Time

Restless Shadeling

Restless Shadeling – around the cellar in Deadwind Pass from midnight – 9am (server time)

shadow sporebat

Shadow Sporebat – Khadgar’s Tower, Talador

Stone Armadillo

Stone Armadillo can be found in Desolace at night (server time)

Widow Spiderling

Widow Spiderling can be found near the Twilight Grove, Duskwood – night

Image by BabbiBunni

Erudite Manafiend – Ley-Ruins of Zarkhenar in Azsuna – day

EldritchManafiend Rare Wild Battle Pets

Eldritch Manafiend – Ley-Ruins of Zarkhenar, Azsuna – night

Seasonal

Qiraji Guardling
Qiraji Guardling – found near The Scarab Wall and The Scarab Dais in the southwest area of Silithus – Summer (21 June – September 23)

Snowy Owl

Snowy Owl can be found in Winterspring – Winter (December 22 – March 19).

Weekly Event

Wanderer's Festival Hatchling
The Wanderer’s Festival occurs every weekend in Krasarang Wilds.

World Event

DarkmoonGlowfly Rare Wild Battle Pets

Darkmoon Glowfly – Darkmoon Island

Darkmoon Crow

Crow – only appears as a secondary pet