Terrestrial pets can only be used on land. There are five different families of Terrestrial pets in Guild Wars 2: Birds, Boars, Canines, Moas and Spiders. Their unique skills can increase movement speed, knock your enemies down, immobilize or poison your foe.
Terrestrial Pets
Family: Bird – highest damage pets but long cast animation, increases movement speed by 33%
 Eagle |  Owl |  Raven |  White Raven |
Family: Boar – knocking your enemies down
 Boar |  Pig |  Siamoth |  Warthog |
Family: Canine – knocking down foes, slows the enemy’s movement by 50%
 Alpine Wolf |  Fern Hound |  Hyena |  Krytan Drakehound |  Wolf |
Family: Moa – healing, lowers the target’s defense
 Black Moa |  Blue Moa |  Flamingo |  Red Moa |  White Moa |
Family: Spider – immobilizing and poisoning your foe
 Black Widow |  Cave Spider |  Forest Spider |  Jungle Spider |
my ranger pet interface shows a hawk pet, is that new? it’s not on your lists.