Nest #8116

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

	2023 - Denise	2022 - Denise	2021 - Denise
aAdult Arrival	3/9/22	3/9/22	3/23/21
aOccupied		Yes	Yes
aActive
bEgg Laying
bIncubation Initiation	4/1/22	4/1/22	4/20/21
cClutch Hatching	5/13/22
dNestlings	1		2
eFledglings	1		2
eFirst Chick Fledging	7/11/22		7/22/21
fChicks Last Observed	9/22/22
xNest Failure
xReason For Nest Failure

Select Seasons

Activity reports

Adult arrival	03/09/2022	Nestlings
Nest Occupied	Yes	Fledglings
Nest Active		First chick fledging
Egg laying		Chicks last observed
Incubation initiation	04/01/2022	Nest failure
Clutch hatching		Reason for nest failure

Adult arrival	03/09/2022	Nestlings	1
Nest Occupied		Fledglings	1
Nest Active		First chick fledging	07/11/2022
Egg laying		Chicks last observed	09/22/2022
Incubation initiation	04/01/2022	Nest failure
Clutch hatching	05/13/2022	Reason for nest failure

Adult arrival	03/23/2021	Nestlings	2
Nest Occupied	Yes	Fledglings	2
Nest Active		First chick fledging	07/22/2021
Egg laying		Chicks last observed
Incubation initiation	04/20/2021	Nest failure
Clutch hatching		Reason for nest failure

Photos of this nest

Nesting Diaries

07/20/2021 by Denise

One chick is perched on the far end of the roof from the nest.

06/13/2021 by Denise

There is a chick head popping up, and I saw a chick wing stretch.

05/21/2021 by Denise

They ospreys were kept from incubating by human interference for over an hour.

05/08/2021 by Denise

They're doing great!

04/15/2021 by Denise

The ospreys who built this nest are likely to be the couple successful at nest #7780 on a burnt old boat last year. They were thwarted in an attempt at building a nest on a new boat this year. Then they built nest #8116 from branches of my beloved old willow oaks :)