how long do baby hummingbirds stay in the nest
The hummingbird eggs will remain in the nest incubating for approximately 16-18 days before they hatch. If the weather is cooler it may cause them to hatch a few days later. While the eggs are incubating in the nest, the mother hummingbird will sit on eggs to keep them at a constant temperature of 96 degrees.epending on the type or species of hummingbird, the little babies will weigh approximately 0.62 grams. That's one-third (1/3) the weight of a United States Dime. They are about one (1) inch long and cannot regulate their own body heat. Their beaks are short, stubby, and yellow.