Kittens are best left with mom until 8 weeks of age.
When kittens become orphans their chance of survival decreases.
Chances of survival decrease further when entering a shelter setting. Losing the benefit of having a mother, along with the stress and exposure to diseases makes staying healthy a challenge. Many times the best a shelter can offer is humane euthanasia to orphaned kittens.
Please give mom a chance to return to her kittens and then spay and neuter mom and kittens when they are weaned.
Humane Society of the United States: www.hsus.org
Puppy Mill Information: www.stoppuppymills.org
Alley Cat Allies: www.alleycat.org
For teens: http://www.humaneteen.org/
For kids: http://www.kindnews.org/