Hello I am Cwackers from EUW and i am a jungle main. I will admit that i and not the best League player but i do love race car Warwick.

Ganking paths should lead as deep behind the enemy as possible. You can enter middle by sneaking in one of the two entrances in enemy jungle and come out on lane near the enemy turret. One lane, either bottom or top will have very convenient ganking lane passing enemy wraiths and the through tribush, other lane will have the most inappropriate path, through friendly tribush. Also don't underestimate the power of ninja ganks if teammates push lane, especially with the wolf. Help yourself with map awareness.

Use Infinite Duress as a gap closernand Smite, which can be really long range in combination with Flash if needed and follow with Hungering Strike. Your goal is to get target low enough to proc Blood Scent. As it is your priority for teammates to win lanes, don't steal their farm, but do cover if needed when they leave.

With his sustain and off tank build, this predator is very strong when fighting 1v1, you can use that to counter jungle but be aware of being vulnerable deep in their territory. In middle game skirmish brawls mind how strong lock down CC Infinite Duress actually is, you can use it to secure the kill, but if there are more targets, and one kill is certain, suppress his teammate to bring in one more kill. Note that Infinite Duress should be used in combination with Smite and followed by Hungering Strike.

This champion is one of the oldest and most simple ones, which results in easy mechanical playstyle but lack of complex high reward mechanisms. His is extremly easy to learn to play and not hard to master ad well. There are some simple tricks to improve your gameplay anyway.
Blood Scent can be turned off and on, which can be used to trick the prey into thinking you left or haven't even arrived, don't forget to switch it on later though.
Flash into Infinite Duress makes a long range initiate CC.
Never use Hungering Strike while chasing, it has higher range then attacks, but it will only make Warwick stop for a moment to cast, increasing the distance and not procing the Frozen Mallet unlike the basic attacks. Do finish off with it though, because of the constant damage, higher range and independence from attack rhythm.
Infinite Duress into Hungering Strike combo is a great turn around when being dived or fighting isolated prey, locking the attacker and healing yourself.
When a kill is certain, Infinite Duress other target to get additional kill.
Smite can be used while Infinite Duress is active which can be useful when stealing objectives or to use it on a champion to follow up with the slow of Stalker's Blade - Devourer.
Buffing team with Hunters Call in fights will be rewarded with free assissts.
When fighting 1v1 save your Infinite Duress to surprise enemy by healing up when low or catching up when he flees.

Dew to the new changes in patch 5.13 WarWick has gotten a lot stronger and the sated devourer makes attack speed better too. I think now because of the changes that WarWick will see a lot more play and become a lot stronger.

This probably is not yet the most optimal jungle path and I could really use your help with finding one that is. Feel free to rate and leave your feedback, thoughts, recommendations and questions in comments section. Thank you for reading the guide I sincerely hope it was helpful. Happy hunting!