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.
Pair cannot get a nest built, sometimes the grasses and sticks just fall, sometimes crows have torn it apart as they try to get nest started. Adult seen several times this week sitting on the pole again, but no nest building success.
This nest has failed for 3 years running. Birds were young, had issues building nest, other osprey chasing them off, electric company removing nest etc. This year they are doing great! They are very large, absolutely beautiful, nest looks awesome!!
Well persistence is thy name, after nest was taken down by ever source on 4/26/2022 the pair said the heck with you and rebuilt underneath the cross poles that were put in place to keep them off the utility pole! They are small enough to fit under the cross poles and are more protected now from other prey.
Adult(s) show up to nest occasionally, but they do not look like the birds that built the nest. These are larger adult(s). They may have chased off the original 2. The younger osprey were being harassed by other osprey.
Nest is looking great. We have been providing sticks each morning on beach and they plus neighboring osprey have been utilizing. 3rd osprey still hanging around, seems to be 2nd and a larger male looking to take over, but not having any luck.
We brought some branches from area and spread them on the beach. This and the dying down of the winds has helped them get a base started. They are still being harassed by a larger osprey on and off. Not sure where they go at night but they are not staying in the nest at night just returning in the morning, staying all day, fishing and trying to build a nest, leaving around 7p.m. each day.
Nest has fallen down again, only some grass remains, see photo.
Pair are doing a little better with nest building. We have brought sticks and spread them along the beach so in addition to beach grass they have gotten a stick out two to stay up. They really cannot get this nest building going. We keep gathering the sticks that drop to ground and take them back to the beach and they keep trying!! Persistence may win out!
This pair show up every morning, drag grass from beach to try to build a nest but no success. Grasses keep falling, they only brought 1 stick and by end of day it is all on the ground below. They stay together on beach, fish, go to “nest” eat, not sure where they go at night, but back in morning to try again. Saw them on grass pile on beach late afternoon today but tide cam in and washed it away, they are back sitting on pole. They have me worried and I doubt they will ever get a proper nest built.
Well it seams our new pair are not giving up quite yet. They were busy this morning starting a nest with grasses from the beach. Returned again at 5p.m. and sat on the very tiny nest of grass. Fishing in front of our house, will see if they continue to build nest in the coming days.
New pair arrived in area on Thursday April 30, 2020. Attempted to start building a nest on the utility pole on the corner of Beach Street and Shore Avenue. The 3 nesting pairs in the area were having none of it and kept chasing and dive bombing at them. Also it were very heavy winds so any grass that actually made it to the pole was blown off.