Best way to reduce grasss cutting is to reduce grass
lawn is pretty useless for wildlife anyway so unless you want to take up tennis how much lawn do you need.
You could for example put raised beds down -so you dont even need to dig it up -just line with a few layers of carboard then soil on the top and grow food -most of it requires little attention once its away until harvesting time.
Or if its accessable you could get a farmer with a mini digger to dig out a pond
Or if you want to keep the grass just take some patches of turf up add some infertile soil and sew some wildflowers and grasses, let it all grow and cut just a path through -then cut the whole lot once a year to encourage the wild flowers to seed and spread.
-mine was all grass but now there is just a wide path down the slope and a circle at the bottom -measured for comfortable swing ball playing for the boys, a seating area near the pond,4 raised beds, for food growing - bulbs in the grass under the plum tree, where the grass is too shaded to grow to the point it even needs cutting, and a blackcurrent hedge.
Rasberrys do well in shade -little does well under conifers -but i have found lemon balm (which i use for tea) does ok.
If you dont fancy any food growing you could fill the lot with perrenials and just make little bark chip paths through -like a mini woodland - but picking up after Rory might make be made more difficult if you did that.