It is one of the facts about natural sound recording that nothing happens for much of the time. You will still be recording, because your subjects aren't directed like human actors are, and you have to be recording when they decide to make a sound. To keep your listener's interest you need to strip out much of this dead time, and it will save you a lot of storage space and make it easier to find what you want.
In days gone by this process was achived by mechanically cutting sections out of the recording medium and rearranging the running order, or copying the wanted sections onto another recorder. Fortunately you can do that with a sound editor on your PC. Unlike the irreversible cutting of the tape, a sound editor allows you to try an edit, and roll back without loss if it doesn't work out.
If you don't currently have a sound editor, the open source (and free) editor Audacity is a good place to start. It works on the three most popular personal computing operating systems. It is a good editor, with all the features you need for editing. Where Audacity is weak is in the area of resampling, filtering and noise reduction, but this is not a major issue when you are starting out provided you record at 44.1kHz. If you record at a different rate and need to convert, you should read this technical note before resampling using Audacity.
Later on if you feel you need these features your can investigate commercial offerings such as Adobe Audition, Sound Forge and others. Sound recordists do not need the range of features musicians need, and it is worth getting some experience with the free Audacity so you have an understanding of how you use digital audio editing software and what you want of it before investing in a commercial product.