Are midwife's more likely to do at-home births?

Depends: Depends upon the midwife; and the complexity of the expectant mother's case.

Yes: Certified Nurse Practitioners tend to work in "Birthing centers". OB MD's almost always use accredited hospital or outpatient facility. Midwives usually perform home deliveries.

Depends: This depends on location & level of training. Many states have lay midwives that would never meet the training and certification requirements to deliver at hospitals or certified birthing facilities. Many certified nurse midwives would not do home deliveries because of the risk involved.