how long do finch eggs take to hatch
House finch The female lays clutches of eggs from February through August, two or more broods per year with 2 to 6 eggs per brood, most commonly 4 or 5. The egg laying usually takes place in the morning, at the rate of one egg per day.[14] The eggs are a pale bluish green with few black spots and a smooth, somewhat glossy surface. In response to mite infestation, which has a more deleterious effect on male chicks than on females, the mother finch may lay eggs containing females first, in order to reduce the length of time male chicks are exposed to mites. This strategy increases the liklihood that representative numbers of both sexes will survive.[15] The female incubates the eggs for 12 to 14 days. Shortly after hatching, she removes the empty eggshells from the nest.[16][17] The hatchlings are pink with closed eyes and tufts of fluffy down.[18] The female always feeds the young, and the male usually joins in.[14] The young are silent for the first seven or eight days, and subsequently start peeping during feedings.[13] Initially, the mother carries fecal sacs out of the nest, but when the young become older, she no longer carries them all away, allowing droppings to accumulate around the edge of the nest.[13] Before flying, the young often climb into adjacent plants, and usually fledge at about 11 to 19 days after hatching.[13] Dandelion seeds are among the preferred seeds fed to the young.[16] Most birds, even ones with herbivorous leanings as adults, tend to feed their nestlings animal matter in order to give them the protein necessary to grow. House finches are one of the few birds who feed their young only plant matter.[6]
Tent caterpillar Caterpillars grow rapidly and typically complete their larval development in seven to eight weeks. When fully grown, the caterpillars leave the natal tree and seek protected places on the ground or under the eaves of buildings to spin their cocoons. About two weeks later, they emerge as adults. Shortly after eclosing from the cocoon, the female moth secretes a pheromone which draws males to her. Mating typically occurs in the early evening and the mated female, already fully laden with eggs, typically oviposits the full complement later that same evening. The eggs are placed around the circumference of a branch and covered with a frothy material called spumaline. Spumaline is hydrophilic and prevents the eggs from drying out. It also serves as a protective covering which limits the ability of small wasps to parasitize the eggs. Although the male moth may live for a week or more, the female dies soon after laying her eggs. Thus, the whole of the female's adult life may take place in fewer than 24 hours.