Hello, we see you may be posting about Resource Guarding. This is when dogs vocalize (growling, barking), or use more physical means (biting, air snaps, lunging and so forth) to convince us or other dogs to stay far away from their valuable resource. The resource could be a mere piece of kibble, a bully stick or chew, a chair, a piece of trash, a bed, a toy, a person, or any object the dog deems of high value. All dogs may guard to an extent, since they innately do not know how to share. They view all resources mentally as "Mine, mine and only mine!". Resource Guarding is a rather common behavior that dog owners face to one extent or another. We wanted to supply you with some wonderful resources on this topic, but be aware that management and proactive learning will be needed.
Patricia McConnell Other End of the Leash blog, Resource Guarding: Treatment and Prevention
Whole Dog Journal, Key term search Resource Guarding
Mine!: A Practical Guide to Resource Guarding by Jean Donaldson
Should the issue stay the same or worsen despite your best attempts, please do not hesitate to contact a professional, reputable, positive reinforcement trainer, or better yet, a board-certified Veterinary Behaviorist (US Directory here), you are absolutely not alone in dealing with resource guarding.
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