17. In 2012, the eggs in the Sapsucker Woods Pond nest hatched 30-35 days after the first egg was laid. How many eggs do Great Blue Herons lay? According to the scientific literature, Great Blue Herons usually incubate their eggs for about 26-29 days. the great blue herons lay about 3 through 7 eggs they lay 1 egg the first day 2 eggs the second day and 2 the next day and the next day 2 again, but the great blue herons stay on the eggs till all the eggs hatch if some hatch and some are left overs they wait till all of the eggs are hatched and feed them. Herons are “seasonally monogamous” as they select a new mate each season. There were 89 of the nests in the bunch and 35 of them were apparently in use when examined one day, the last of March, 1912. Eggs are incubated for about 28 days; both partners share in the duties of incubation and care of hatchlings. While not many animals eat herons there are several that will eat heron eggs along with very young herons. No. 16. The others hatched on April 28, April 30, and May 2. If their first clutch of eggs fails they can lay up to 2 more clutches, so we may see eggs They typically lay 2–6 eggs. A laying hen can at most produce only one egg about every 28 hours. Therefore the nests themselves are often in hard to reach spots such as on islands and in trees located swamps. The word heron first appeared in the English language around 1300, originating from Old French hairon, eron (12th century), earlier hairo (11th century), from Frankish haigiro or from Proto-Germanic *haigrô, *hraigrô. The birds had just begun to lay their eggs and were very wild. The number of herons breeding in Britain and on the Continent has been growing steadily for many years. On the whole, the eggs are glossy blue or white, with the exception being the large bitterns, which lay olive-brown eggs. Nests are often also built very high up … In 2012 abd 2013, the Great Blue Herons at Sapsucker Woods Pond laid five eggs. They may move slowly, but Great Blue Herons can strike like lightning to grab a fish or snap up a gopher. Herons build their nests in about a week, but construction continues throughout incubation and after the eggs have hatched. Herons are among the earliest nesters. All these factors influence the time of day an egg is laid, so it varies with each egg. Do herons mate for life? This stately heron with its subtle blue-gray plumage often stands motionless as it scans for prey or wades belly deep with long, deliberate steps. When do the herons lay eggs? We need you to answer this question!