Are you looking for an easy hike that is just a couple miles. I have a great one for you. Located off of Route 119 on Conversevelle Road in Rindge is a great beginner hike. Converse Meadow Trail is managed by the Monadnock Conservancy. The trail is about a mile and a half loop with the option of a couple side trails to various view points. This adds on another roughly half mile.
The trails are relatively flat with a couple very small inclines throughout the trail. There are signs alone the trail pointing out various animals and plants. A fun fact about the trail (I forgot to take a picture) is that in the 1940's it is rumored that a escape convict was living in a log cabin in these woods to hide from the authorities. I wonder if his ghost haunts this area?!
The trail is perfect if you are looking for an easy couple mile hike with young children or a beginner hiker. We did see a couple different birds, so I also think this would be a great wildlife viewing area.