12-14 days after the mother began incubating the eggs.
It means all the babies hatch close to the same time. Mother robins may start incubating their eggs during the evening after the second egg is laid, or after all the eggs are laid. They sit on the eggs for 12 to 14 days. So they will hatch 12-14 days after the mother began incubating the eggs, and the babies will be fledging (leaving the nest) about 14-16 days after that. Remember, though, that when they first leave the nest, they will not yet be flying, so you need to be careful of any pets or children that may be in the area. The American Robin will see their eggs hatch in about fourteen days, after a mating season that lasts from April until July. The European Robin, a cousin of the American Robin though not as large or brightly colored, has roughly the same incubation period. Their breeding season begins in March. Breeding season lasts from April to July for the American Robin,  and its eggs hatch in about fourteen days. European Robins begin  their mating season in March, and their e … ggs hatch in roughly the  same time frame. Before she can lay her eggs, the female robin, with help from her mate, builds a nest from twigs, mud and dried grass. A finished nest is circular and deep enough to safely cradle the eggs and, later, the nestlings. Nest-building takes the robins two to six days. 1 The mother may still be incubating the eggs. 2  The length of time it takes for eggs to hatch after incubation begins depends on the species and temperatures. 3  For bluebirds, it USUALLY takes about 12-14 days from the date the last egg was laid. Breeding season lasts from April to July for the American Robin,  and its eggs hatch in about fourteen days. European Robins begin  their mating season in March, and their e … ggs hatch in roughly the  same time frame.
http://www.learner.org/jnorth/tm/robin/EggstraEggstra.html https://answers.yahoo.com/question/index?qid=20080422202407AAeK4MQ http://www.answers.com/Q/How_long_does_a_robins_egg_take_to_hatch http://www.answers.com/Q/How_long_does_a_robins_egg_take_to_hatch http://www.ehow.com/how-does_5419182_long-robin-eggs-hatch.html http://www.sialis.org/eggsunhatched.htm http://www.answers.com/Q/How_do_you_hatch_a_robins_egg
when do robin eggs hatch