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.
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.
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.
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
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.
Look for signs of nest failure like adult abandonment, adults no longer incubating eggs or feeding young.
17-July-2023, 0900 to 1000 hrs: Weather, partly to Mostly cloudy (75%); Temperature, 78º to 80º; Wind W at 5 mph; Humidity, 84%; Bay calm.
One nestling and two adults on nest upon arrival. One adult adult left nest at 0901 hrs heading E over bay. Second adult left nest at 0915 hrs. First adult returned at 0917 hrs and began vocalizing at 0918 hrs. along with nestling. Number two adult returned to nest at 0935 hrs with a fish and both adult and nestling feeding on same. Unknown whereabouts of second nestling.
Notes: Two adult Bald Eagles perched on a utility pole 500 yds N of nest at -0920 hrs. One BE left perch atop of pole at 0935 hrs and was replaced by a gull. Second BE left pole at 0947 hrs.
Human activity so close to nest platform doesn't seem to disturb nesting activity although when someone walks directly under platform Osprey do vocalize briefly.
1000 hrs to 1100 hrs: Weather; Mostly cloudy; Temperature, 80º to 82º; Humidity, 81%; Wind, South at 5 mph; Bay calm.
One adult and two nestlings visible. A second adult observed perched on channel marker 300 hrs NE of nest. This second OS left perch at 1035 hrs and headed out over bay. Unknown if this adult is mate to this nest. At 1100 hrs, OS on nest left nest and circled area for a few minutes then returned to nest. Nestlings stayed hidden during most of observation except briefly poke heads up once or twice during observation.
Lots of human traffic on beach below nest and surrounding area. Boat and jet ski traffic moderate but didn't seem to cause any major disturbance.
1000 hrs to 1100 hrs: Weather, Overcast: Humidity, 85%; Wind, E at 13 mph.
Two Adults on nest. One Adult left at 1010 hrs and returned within a few minutes with a lump of grass and placed in nest bowl.Both Adults left nest at 1016 hrs with one returning at 1018 hrs. Second Adult arrived back at nest at 1034 hrs with a fish. Adults began feeding nestlings. Both nestlings visible. One of the Adults left nest at 1038 hrs and didn't return during remainder of observation.
Very little boat and pedestrian traffic.