Nest #7749

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Nest #7749

Nickname

Hamilton1

Coordinates

(41.7434, -70.7135)

Substrate

Osprey Nest Platform

Description

On causeway to Hamilton Beach, Pilgrim Avenue, Wareham, MA (Platform put in place after electric company knocked down older nesting site on pole across the street.)

Followers

None

Monitoring groups

Mass Audubon-South Coast

What to look for

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

Review All Observations

	2022 - Dascas241	2021 - Dascas241	2020 - Dascas241
aAdult Arrival	3/26/22	4/4/21	3/29/20
aOccupied	Yes	Yes	Yes
aActive
bEgg Laying			4/18/20
bIncubation Initiation		5/9/21	4/18/20
cClutch Hatching			5/22/20
dNestlings	2	1
eFledglings	2		2
eFirst Chick Fledging
fChicks Last Observed
xNest Failure
xReason For Nest Failure

Select Seasons

Show reports, diaries, and photos from:Current 2022 2021 2020

Activity reports

2020 Nest Activity Report by Dascas241

Adult arrival	03/29/2020	Nestlings
Nest Occupied	Yes	Fledglings	2
Nest Active		First chick fledging
Egg laying	04/18/2020	Chicks last observed
Incubation initiation	04/18/2020	Nest failure
Clutch hatching	05/22/2020	Reason for nest failure

2021 Nest Activity Report by Dascas241

Adult arrival	04/04/2021	Nestlings	1
Nest Occupied	Yes	Fledglings
Nest Active		First chick fledging
Egg laying		Chicks last observed
Incubation initiation	05/09/2021	Nest failure
Clutch hatching		Reason for nest failure

2022 Nest Activity Report by Dascas241

Adult arrival	03/26/2022	Nestlings	2
Nest Occupied	Yes	Fledglings	2
Nest Active		First chick fledging
Egg laying		Chicks last observed
Incubation initiation		Nest failure
Clutch hatching		Reason for nest failure

Photos of this nest

Nesting Diaries

04/25/2020 by Dascas241

Saw the most amazing activity today, The Osprey were defending nest from a Bald Eagle! initially only 1 was diving at Eagle with Eagle flipping over in flight and stretching talons to try and injure Osprey then 2nd Osprey left nest and joined in. Finally the Eagle landed in nearby tree, then 2 Osprey started after a 3rd Osprey that was trying to fish in water near nest. Amazing to watch, both Eagle and 3rd Osprey finally left and 1 Osprey resumed sitting on eggs and the other took up his/her spot in nearby trees. Do Eagles raid Osprey nests or was it trying to fish??

04/20/2020 by Dascas241

Have observed osprey sitting very low in nest the past 3 days (barely visible) so we are assuming she is sitting on eggs.

04/10/2020 by Dascas241

Nest is active and birds observed coming and going from nest.

04/05/2020 by Dascas241

2 adults in nest last night. As we approached nest 1 adult flew out leading us away from nest. Possible sign of egg laying?

03/29/2020 by Dascas241

Saw/heard pair of osprey flying over water next to our house this morning! Early Afternoon went to check the 3 nests nearby and found the pair occupying Hamilton1! The nest itself is in very good shape.