
Great blue herons (Ardea herodias) at Kingfisher Pond, San Pedro House, Cochise County, Arizona.
I got my first view of the heron chicks at Kingfisher Pond yesterday. At first I could only briefly see the top of a fuzzy head popping over the rim of the nest, while one of the parents stood preening. But then the other parent arrived from feeding, gliding down the river course and landing on the nest, to great excitement all around. Before any chicks were offered food the adults performed a ritualized greeting, with clacking bills and feather displays—a truncated version of G. B. H. mating behaviors that reinforce the adults’ pair bond. It’s hard not to anthropomorphize the moment, provide dialog, something like “don’t ever leave me alone with these babies for so long ever again,” or, “did you remember to get the fresh minnows like I asked?”
I have been very careful not to stress these birds during this breeding season by getting too close. I am lucky to have a long camera lens that makes it possible to keep my distance. The nest is at the top of a mature cottonwood tree about 60 feet high (18 m), and my closest vantage point is more than 150 feet away on the opposite bank of the San Pedro River, but even so I am sure the adult birds have been aware that I was watching. I’ve noted before that nesting birds aren’t free to leave if they are anxious about an observer who gets too near. It’s up to us to look for signs that the birds are distressed and move away. The Audubon Society publishes excellent guidance on ethical practice for
birders and photographers that you can access here.