I think that the light trick would be best. I'm like you my phone is on complete silent when I'm in the woods. I check it once an hour to make sure the boss isn't calling (the real boss, my wife is good and leaves me alone when I'm out). Of course I always dummy cord it to myself and I only take my work phone, that way if I lose it......

Are you certain you had it with you  IN THE FIELD ?

When was the last time you held it in your hand before that hunt ?  Make sure it didn't fall between the car seats or in the trunk (instead of being out looking in the grass).

Sit and think what you did and where, after that last fondle.

Retrace the steps and look especially well at locations where it might have been impacted, touched, moved etc. Did you trip anywhere ?  Take something out of the same pocket ? Change clothing ?  

Its somewhere, keep looking, however, sit and think a bit first.  It might not be where you are thinking.  You can't find something if it isn't there to be found.

ChuckC

If you put it in your bibs then you probably lost it when you either bent over or took your bibs down for "some" reason.
 

Charlie is right. Look for the white flag of TP    

Metal detector is the only way.

I'd say it's time for a new phone. Might want to keep your contacts in your email on the computer. Makes it a snap to load a new phone in the future.

I bet the nsa knows exactly where it is.