The nest is on a utility pole on Sixth Ave. between Memorial Drive and Main Street. It is on Riley Park near the train station. Sticks and branches can be observed strewn on the sidewalk. Construction has just begun.
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.
On my way from the post office i heard the high pitched whistling sound of an osprey. I looked up and sure enough, an osprey was sitting in the beginnings of a new nest! The sidewalk was scattered with twigs and branches. A neighbor in a third story apartment hung out the window as I photographed the nest and remarked that they hoped to keep it a secret. This was the first warm day (about 80 degrees) after a long winter. I am posting here to make it possible for the bird(s) to have a successful nest. I will follow up periodically.