Nest #8555

Adult Arrival

Look for 2 adults on the nest. The adult pair will show pair bonding behaviors such as vocalizations, aerial sky dances, and the male feeding the female fish. You may see the pair copulating, which typically begins 14 days before laying eggs.

Incubation Initiation

Females will lay 1 - 4 eggs at a rate of one egg every 1 - 2 days. After laying, incubation starts. Look for adults taking turns sitting low in the nest incubating eggs. The incubation period can last 35 - 43 days.

Clutch Hatching

Chicks hatch ~39 days after incubation begins. Look for adults bringing food to the nest and making "head bows" into the center. Chicks typically can't be seen until they are 2 - 3 weeks old, so feeding behavior is the only way to know chicks are there.

Nestling Count

Around 4 weeks after hatching, look for the heads of chicks to show over the rim of the nest, particularly when adults bring food to the nest. Other times they lie flat and are harder to see. Count the number of chicks in the nest before they learn to fly

Fledgling Count

Chicks begin flying around 7 - 8 weeks old, and are still fed by the adults. Count the number of chicks who have successfully fledged the nest and are observed flying.

Chick Last Observed

4 - 10 weeks after fledging, chicks begin leaving the nest area to migrate south, once they have learned to fly and feed themselves. Record the date that the last chick left the nest.

Nest Failure

Look for signs of nest failure like adult abandonment, adults no longer incubating eggs or feeding young.

Previous Next

Adult arrival		Nestlings
Nest Occupied	No	Fledglings
Nest Active		First chick fledging
Egg laying		Chicks last observed
Incubation initiation		Nest failure
Clutch hatching		Reason for nest failure

Adult arrival	03/20/2022	Nestlings
Nest Occupied	No	Fledglings
Nest Active		First chick fledging
Egg laying		Chicks last observed
Incubation initiation		Nest failure	06/15/2022
Clutch hatching		Reason for nest failure	unknown reason

Adult arrival	Nestlings
Nest Occupied	Fledglings
Nest Active	First chick fledging
Egg laying	Chicks last observed
Incubation initiation	Nest failure
Clutch hatching	Reason for nest failure	other

Adult arrival	03/18/2023	Nestlings
Nest Occupied		Fledglings
Nest Active		First chick fledging
Egg laying	04/20/2023	Chicks last observed
Incubation initiation	04/20/2023	Nest failure
Clutch hatching		Reason for nest failure

Photos of this nest

Nesting Diaries

04/25/2023 by Joyce

4/20/2023 - I did not see more than one osprey in the nest for quite a while. And the nest was sparse. Finally the two could be seen on the nest together but I had only seen them vertical, not one of them horizontal. However, the female is now sitting in the nest presumably because she is incubating eggs. Some at at least two nests that have been routinely occupied for many years do not have ospreys this year.

03/19/2023 by Joyce

3-19-23 - A single bird arrived earlier, but just seemed to be sitting there, no nest building. Kristina, the homeowner, reported a pair observed on the nest on the 18th. Their nest had been almost dismantled over the winter, but not seeing much nest building activity so far. Male has been flying around, however, so may be looking for nesting materials.

	2023 - BarryM	2023 - Joyce	2022 - BarryM	2021 - BarryM
aAdult Arrival		3/18/23	3/20/22
aOccupied			No	No
aActive
bEgg Laying		4/20/23
bIncubation Initiation		4/20/23
cClutch Hatching
dNestlings
eFledglings
eFirst Chick Fledging
fChicks Last Observed
xNest Failure			6/15/22
xReason For Nest Failure	other		unknown reason