Bloodhound's guardian sigil vs cuckoo's brood parasite sigil -- which comes first?

[IceHippo]

Bloodhound sigil: When an opposing creature is placed opposite to an empty space, this card will move to that space

Cuckoo's egg sigil: When a card bearing this sigil is played, an egg is created on the opposing space

I tested this by playing a cuckoo-sigil card and the new egg appeared before the bloodhound-sigil card would move to the space I have no idea if there is a priority on your sigil's vs Leshy's, or if the cuckoo sigil will always go first vs the bloodhound, or if this is random.

[Ζiоqch]

Brood parasite always wins