You can do this at home, but be very careful, as you can easily hurt the chicks. Determining Sex in Chicks by Don Schrider from the June/July, 2011 issue of Backyard Poultry - Backyard Poultry Magazine
A list of chicken predators and the signs they leave behind I've lost chicken to fox and hawks, and ducks to weasels (not mentioned in this article - they actually made tiny puncture marks in necks and drank the blood! Little vampires!
Can these egg abnormalities be seen in Budgies or other domestic birds? Detailed information on funky eggs. Abnormal chicken eggs happen to all of us - it's just a matter of time. Here's 10 weird eggs and everything you need to know. From FrugalChicken
The actual costs and profits of raising backyard chickens will surprise you! The price of chicken feed and bedding is nowhere near what you can get from the eggs, manure and compost material! Check it out!