The scenario in my sketch was a water series in a derby I ran. Two long swims, gunners are sitting behind shrubs.
My dog took a beautiful line to the go bird (G2). She gets on shore, she's just a few feet from the bird when I see her stop and sniff the air; she then merrily trots down the shore and picks up the wrong bird. When it came time to send her for the 2nd bird, she wanted to pick up the bird she already got. She obviously thought the first bird she retrieved was the bird thrown by G2.
This is why I was thinking bird boy help, as she is lost and not being self employed.
Her poison bird skills are much better now than then, so maybe that will help.