Wow Edward, that's a lot of cats. Thanks for sharing. I agree with James, a lot of good shots in there. I like 6, 7, 8, and 14. Of course the kitten is very cute.
Peggysue, I noticed the ears too but most are perfect cuts. A lot of time in large feral groups, people choose to leave them outside as apposed to bringing them in and either adopting them or killing them. But left to their own devices, the population will boom, with or without adequate food. So a lot of times shelter organizations will come in and sterilize the population. And to prevent wasting time trying to recapture the same feral over and over again, they developed a means of quick identification of the fixed cats. They Tip the ear and it's easy to spot.