Predator birds miss... more often than not; the chipmunk has "other days."

a hunter
soars above the field
its search
diving hawk
this chipmunk to its den
tomorrow

__I haven't the credentials to suppose I know the form of Sedoka, I can only rely on my opinion; six lines, both the first and second triplets quite able to be read as haiku/senryu, and as linked... the whole, a complete feeling. I think the structure of 5-7-7 , 5-7-7... is subject to the same English syllable minimalism as haiku and senryu.
_m

a forest trail
dry leaves whisper my steps
beechnuts
this deer runs
and spews fog above its nose
stillness

Water Face

_I scribbled a short story years ago: At the native clan's summer camp, a Mahican child saw his reflection in the river's pool; through accumulated summers, the river's pool never changed... but his face never stopped... . This sedoka, (some may not call it that,) as a condensation of that story, was posted on 11/11/07 at http://www.wonderhaikuworlds.com/ .
_Janice's most recent post "reflected" this memory... though now, it has become somewhat "edited."

of this river pool
a mahican sees his face
in its roaming course

of that water face
this child of spirits reasons
he may never know