In Europe they actually let the egg whites sit out without refrigeration for days so the water evaporates and you have more protein for the amount of liquid. I do not actually recommend this, but your 3 day old refrigerated whites are definitely still good.Source(s):n Europe they actually let the egg whites sit out without refrigeration for days so the water evaporates and you have more protein for the amount of liquid. I do not actually recommend this, but your 3 day old refrigerated whites are definitely still good. Source(s):
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.ost birds lay their eggs at sunrise, but NOT robins! They lay their eggs at mid-morning. That's several hours later than most birds lay eggs. For robins, this makes good sense.
The length of a gestation period varies from bird to bird. Oftentimes, larger birds require longer gestation periods than smaller birds.For example, muscovy ducks -- one of North America's largest ducks -- require approximately 35 days for gestation, while smaller ducks have gestation periods of less than 30 days.Smaller perching birds, such as northern mockingbirds, have a gestation period of only 13 to 15 days.A smaller bird of prey, the red-tailed hawk, has a gestation period of 28 to 32 days, while the California condor needs at least 56 days for the gestating period.he length of a gestation period varies from bird to bird. Oftentimes, larger birds require longer gestation periods than smaller birds.