▁will ▁continue ▁to ▁bay ▁the ▁entire ▁time ▁they ▁are ▁tracking ▁the ▁racc oon . ▁The ▁dog ' s ▁voice ▁may ▁change ▁tim bre ▁depending ▁on ▁how ▁fresh ▁or ▁" hot " ▁a ▁sc ent ▁is . ▁Un like ▁some ▁bre eds ▁of ▁hunting ▁dog ▁that ▁use ▁sight ▁to ▁locate ▁their ▁pre y , ▁co on h ounds ▁use ▁their ▁sense ▁of ▁sm ell ▁alone . ▁The ▁h unt ▁typically ▁ends ▁when ▁the ▁racc oon ▁clim bs ▁a ▁tree . ▁Upon ▁reaching ▁the ▁tree , ▁the ▁dog ▁or ▁dogs ▁will ▁stop ▁bay ing ▁and ▁begin ▁the ▁" tree " ▁b ark , ▁also ▁referred ▁to ▁as ▁the ▁ch op ▁b ark ▁for ▁its ▁short , ▁sharp ▁sound . ▁This ▁change ▁in ▁vocal ization ▁lets ▁the ▁h unter ▁know ▁when ▁a ▁racc oon ▁is ▁tre ed . ▁Some ▁dogs ▁have ▁em itted ▁as ▁many ▁as ▁ 1 5 0 ▁ch op ▁b arks ▁per ▁minute ▁when ▁on ▁a ▁tree . ▁The ▁dog ▁is ▁thus ▁said ▁to ▁be ▁tree ing , ▁and ▁the ▁racc oon ▁is ▁considered ▁tre ed . ▁▁ ▁The ▁human ▁h unter ▁may ▁either ▁follow ▁the ▁dog ▁as ▁it ▁hun ts , ▁or ▁remain ▁in ▁one ▁place ▁and ▁only ▁go ▁after ▁the ▁dog ▁once ▁it ▁has ▁tre ed . ▁ ▁Track ing ▁coll ars ▁with ▁built - in ▁global ▁position ing ▁systems ▁may ▁be ▁used ▁to ▁help ▁locate ▁the ▁dog , ▁though ▁histor ically ▁the ▁dog ' s ▁voice ▁was ▁used ▁as ▁a ▁loc ator . ▁Following ▁the ▁dog ▁to ▁the ▁tree ▁is