It sees it's reflection, and thinks it is attacking a rival. Close your curtains, and this will stop.
they usually lay them in the late spring and then it takes maybe a month to open
It could be that she's going into heat, and is ready to be bred. Her calf would be around 2 months of age (or 45 to 60 days old) by this time.
21 days from the time she remains on the clutch of eggs. A broody hen may gather eggs for several days before remaining on the nest continually. Brood hens will move off a nest of eggs for food, water and defecation but not usually for more than 20 minutes each time.
Birds are stupid.
Mid to late spring for first clutches of the American robin. Robins may be double brooded in southern areas.
In the Days of Robin Hood - 1913 is rated/received certificates of: UK:U
glory days
The North American Robin fledges at about 12 days from hatch.
An American Robin will incubate her eggs for 15-17 days.
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.
It takes about 3 days for a robin to build its nest!!
the island of despair;13 days
Robin Williams
Happy Days His stint on Happy Days created the character of Mork, which was then turned into a spin-off, in which Robin was the star (lead character)....Mork & Mindy
Robin eggs do not get bigger in diameter if that is the question. The incubation time for a Robin chick in the egg is 12-14 days.
When you put water near a window after a couple days it will evaporate.
The American Robin (Turdus migratorius) incubates the eggs for 12 - 14 days. The nestling period lasts about the same time, typically 13 days. That is when they fledge. Robins have about three broods a year. I'll post some video on youtube of a mother Robin and three chicks using the same user name. Chuck - Saco, ME