Little stuck on a Poisson problem.

I remember something about the exponential distribution being the time between Poisson processes, but not sure how to apply it here.Sightings of a particular species of rare bird occur at a rate of 6 per year. Assume that sightings can be modelled by a Poisson process where time is measured in years and time 0 is the present time.

Let be the time from time 0 until the 1st sighting. What is the probability that is at most:

i) 1.

ii) 2.

Would be distributed ?

Thanks in advance