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.
Significant amount of nesting material has fallen to lower platforms. There continues to be no Osprey seen in the area. American Crows and Turkey Vultures have taken over the tower as a regular perching location.
Have not seen an adult Osprey on the nest or in the area in the last two weeks. I pass by here almost daily. Will check a few more times before I mark it as abandoned. A significant amount of nesting material has fallen off of the nest onto lower platforms.
Viewing nest from sidewalk behind 7-11 parking lot. Nest is on top platform of the cell tower, one bird sitting on the edge reaching down inside nest tending to nestling(s). Quite a bit of nesting material is piled up on the middle and lower platforms as if it had blown down from the top platform.
Have been watching this nest site all season as I drive past here almost daily. I had seen a newly constructed nest and Osprey sometimes flying around the tower but unable to see if there was a bird incubating on the nest. On 5/17/23 I observed one Osprey perched on pole near nest while a second flew in with food that was delivered inside the nest and not to the adult bird perched nearby.