The invention relates to a device for injecting veterinary products to at least one bird by intramuscular injection, wherein said injection(s) can be carried out in the area of at least one muscle in the vicinity of a bone having a detectable shape in the body of said poultry, said device comprising: a retention member with means for bracing said detectable bone, at least one hole being formed in said retention member at least one injection needle, said needle(s) being movable across said opening(s) characterized in that the retention member has: an anatomic shape that conforms to a portion of the body of said poultry and inside which is provided said means or bracing the detectable bone, said anatomic shape including a bearing surface for said body at said muscle at least two contact sensors to be actuated by said poultry and provided on the anatomic shape with at least one on the bearing surface, said opening(s) being provided between said sensors.
