I was wondering about grit for my little ducklings. they are on their 4th week of life or maybe a little older they seem to be getting feathers and advancing a little faster than most the stuff i read. anyways my ducklings spend all their time outside in the run during the day and spent their first night outside last night. I built a really nice very secure outside brooder with a heat lamp for them to lock them up tight at night. it got down to about 45 degrees but was nice and warm inside for them. I was a bit worried but they were up and ready to play as soon as i got up. anyways back to my original question about grit. they eat a lot of everything ! yesterday I was sitting out with them and a grasshopper jumped by and one of the ducks snagged it up up faster than you could blink an eye. I also notice they eat a lot of dirt, well not a lot but they are constantly pecking in the ground for something and im sure they are eating little rocks and bugs all day. do i need to provide grit for these little guys or is all the extra they are randomly picking up through the day enough ?