These Wolf/Dog constructs were originally bred to hunt down Sparks, however some Sparks (including the family.) enjoyed the novelty of the idea and started making contributions to the breed for their own ends. They first appear in the story proper when Martellus von Blitzengaard, who seems to have an affinity for such constructs, unleashes several to quell a rebellion against him in The Refuge of Storms. When Agatha escapes the Refuge, von Blitzengaard calls on several roaming packs, including the one overseen by Ishtvan, that patrol the nearby area to stop her. While they fail in this task they later go into battle against Wulfenbach Sentinels with a good . Their subsequent fight with Higgs, Bohrlaikha and a Great Sky Wurm does not .
Later on, when Tweedle arrives with an army at the Corbettite Depot Fortress, his second-in-command Tybalt turns out to be a Sparkhound (or something very similar) wearing a suit of Professor Eg's Nerve-Enhancing Armor.
Given that these creatures were originally intended to hunt down and kill/capture Sparks, one can assume that they have intelligence comparable to other sapient animal constructs, with those created and bred by von Blitzengaard sharing several traits with Krosp such has the ability to be .
Martellus does not seem to know much about actual wolves, as he seems to installed a pack structure based on the concept of an "alpha" or pack leader.