[eeyore]

you have an extremly slim chance without a driving licence as nearly every ranger job includes some manner of site patrols in a 4x4 vehicle - there are a few sites which are patrolled by bike particularly in urban areas but even here the ability to drive a vehicle (for example to move materials and tools for a working party) is normally a prerequisite.

if being a ranger is your job target i have to question your choice of masters - biological recording would be fantastic for a career in ecology but for a general ranger job you would be better doing something that improves your site management, people facing, and education skills (tho the latter might be covered by your job.)

most ranger jobs - even summer seasonal work unless very basic will require six months or so experience , some require more like two years.

overall my advice would be to suspend your studies and get volunteering as much as possible - you can always come back to your masters once you have a ranger job - and many employers have training money to put towards such things.

Btw just so you can see my credentials for giving such advice : I graduated in 94 - volunteered with btcv, wildlife trust and national trust til 96 , had a year out of field to earn some cash, worked on a golf course from 97-99 to fund my masters (Countryside conservation), worked as a seasonal warden through 99-00, became a selfemployed contactor in 2000 , went bust in 01 due to FMD and got a seasonal ranger job with severn trent water, then got a permanent ranger job in milton keynes in late 01 - three years later became a full time volunteers coordinator, then in 06 swapped to my current job as volunteers scheme coordinator (managing staff and volunteers) for a national trail.