hour 7 is underway.

it becomes a drumbeat after a while.
the whistles seem to come sooner and sooner.

while the breeze is still blowing,
but the sun is pretty warm.
fortunately almost the whole trail loop is under the forest canopy.

the only sun exposure is crossing the hayfield
and that is where they fly to make up time.

but the environmental factors are just transitory.
all of them pass by
time is marked by the drumbeat.
the constant in life is bells, whistle, and run.

then get back in time to do it again.