Circle of instinct

Those who follow the circle of instinct rarely meet. They focus on survival above all and tend to protect others around them. Most that fall under this circle find themselves as sudo guardians of other circles. some circles may never know that a circle of instinct member is even around while others invite them in. 

Natural Wild Shape

When you choose this circle at 2nd level, you gain the ability to use Wild Shape on your turn as a bonus action, rather than as an action.

in addition the time you remain in your wild shape is a number of hours equal to your druid level.

Animal Instincts

Starting at  second level while you are unarmored you may add your wisdom modifier to your AC you may add this bonus while wild shaped as well.

in addition relying on instinct allows you to gain advantage on any dexterity saving throws on anything you can perceive (smell, hear, or see).

Honed Instinct

starting at 3rd level your instincts have honed granting you advantage on all perception checks.

You also gain the ability to transform into more dangerous animal forms. Starting at 2nd level, you can use your Wild Shape to transform into a beast with a challenge rating as high as 1 (you ignore the Max. CR column of the Beast Shapes table, but must abide by the other limitations there). Starting at 6th level, you can transform into a beast with a challenge rating as high as your druid level divided by 3, rounded down.

Savage Instincts

at 6th level while you rely on your instinct whenever you take the attack action you can give yourself advantage on all your attacks however all attacks on you are made with advantage until the start of your next turn.

Also at 6th level, your attacks in beast form count as magical for the purpose of overcoming resistance and immunity to nonmagical attacks and damage.

Survival Instinct

At 10th level your will to survive manifests bolstering your own life force. As an action you may grant yourself temporary hit points equal to your druid level. you may use this feature once and cant do so again until you finish a long rest or expend a use of your wild shape feature to do so again.

In addition whenever you wild shape you gain these temporary hit points in your wild shape form.

Instinctual Concentration

at 14th level concentrating on spells is a basic instinct for you. you gain advantage on your constitution saving throws to maintain concentration on a spell while concentrating on a single spell. in addition you may choose to allow your instincts to take over concentration over your spell allowing you to cast and concentrate on a second spell. your Instinctual concentration can only focus on the spell for 1 minute and you lose concentration on both spells if you stop concentrating on the new spell.