Haiku and senryu are the same but different. Both are Japanese poetry forms in English, of three lines, with five syllables in the first, seven in the second, and five syllables in the last line. The difference is in the content of the poems. Haiku tend to be about nature and are serious in tone, while senryu are usually “about human foibles and are often cynical or darkly humorous.”
In Syllables Go By, my recently published book of 99 three-line, seventeen-syllable poems I used a blend of senryu and haiku. Sometimes I mixed the two in the same poem.
Here are two senryu, 34 more syllables to add to all to all those other syllables going by:
Issues of aging–
did I mention dementia?
Must’ve slipped my mind.
Settled in my ways,
the changes here are still the same.
Think I’ll go abroad.