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.
I went to the nest on Sunday and saw a female and male perched on either prong of the nest. I couldn't see in as easily, but they looked like they were feeding nestlings. I'll try to count next time I go down.
I walked down today just to check it out, it looked like one of the ospreys was crouching down because it was getting hot out. I couldn’t see if there were any eggs but it was nice to see an occupied nest for the first time.
One large chick on the nest this morning and one parent. Picture uploaded. Looks like junior is ready for takeoff, and is quite content to be the only chick in the nest. I love their little herb garden. ;-)
At least two young chicks in the nest this morning. Mom and Dad both present. Mom left the nest briefly and brought back a carefully selected stick to add to the collection. Dad looked on very intensely. Pix uploaded.
The night before the storm, I observed one Osprey on this nest, appears to be an adult. Will check tomorrow to see how the nest does in this storm which is expected to bring up to 40mph east winds and heavy rain. Picture uploaded.
Rain was tapering off this afternoon and both parents and one nestling were observed. Was not able to stay long enough to wait for the other to emerge, but I did capture some photos of one of the nestlings practicing for his first solo flight. Both parents appeared to be sleeping soundly in the process...