A and I were talking over the back fence last night and the subject of the psycho robin came up. Apparently she's been getting a lot of window hits as well! This morning in my email, she sent me this link http://www.learner.org/jnorth/tm/robin/FAQHouses.html
I have included here the response that seemed most likely to be the problem. One of the other suggestions was that birds were just confused by the reflection of the outdoors. Given how our robin just STARES at us, this answer seems the most likely for our guy. Here's hoping those eggs hatch soon!
Q. Help! Every day for over a week a robin has been crashing into my glass patio door (or picture window, or car mirror). The window is getting smeared with droppings and blood, and I'm scared that the robin is going to hurt himself. What should I do?
A. Most robins that repeatedly crash into windows are territorial males. If a male sees his reflection in the glass, he thinks could be another male on his territory. Normally when one male robin intrudes on another's territory, he skulks around, and flies away when the actual holder of the territory approaches. Not so with a reflection! Every time your robin gets close to the window, that robin image also comes closer. When your robin assumes an aggressive stance, rather than turning tail and flying away, the image robin assumes an equally aggressive stance, and at every level of increasing aggression in your robin, his reflection matches it. Male robins spend a lot of time and energy keeping intruders away during the time the female is nest-building and incubating eggs. The only way you can help is to get rid of the image bird yourself, by breaking the reflection (without breaking the window!). Closing a curtain from within seldom works, because birds can see very well, so even a faint image is very evident to them. Taping paper or cardboard to the outside of the window can be unsightly, and destroys the whole purpose of having a window, but is 100% effective. Soaping the window from the outside can work, but you really need to cover the entire thing. One thing that sometimes works is to hang helium balloons from the window, tied to a two- or three-foot length of string (or longer) floating at just about the level the robin is focused on. For some reason, birds seem to fear helium balloons--I think because nothing they ever encounter in the natural world "falls up" so the movements seem very unpredictable. A rubber snake or plastic owl sometimes works, but birds often figure out within a day or two that they're fake.Once the baby robins hatch, your male will get so busy tending to their feeding and care that he will stop worrying about that phantom image of himself. Meanwhile, good luck!
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