Toward Definitions: 5th Approximation

I don't want to get ahead of myself, and these approximations are still concerned primarily with matters of form, in regard to which haiku and senryu are identical. But, since I've raised the haiku-senryu issue, I'll permit myself an unsupported generalization at this point, keeping in mind that many argue the haiku-senryu distinction is no longer meaningful or relevant, at least in an English-language context. Anyway, the essential distinction between the two, if distinction there be, is that haiku is driven by perception, while senryu is driven by attitude. This one, for instance, is in my view an unambiguous example of senryu. Notice, by the way, that it's in the strict syllabic 5-7-5 format.

car alarm bleating

I devote my attention

to not hearing it