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.
Very little nesting material, one female osprey spotted at a post nearby the nest, with the male at the nest. The pair switched positions without either very willing to fly far from nest. Possible indication of eggs/nestlings.
Nest has become more built since last observation. Both a male and female were present inside the nest, the actions of the female and the position she sat in made me believe that she is incubating eggs. Male came in and out of nest with materials, while female did not move. (Correction from last diary: the nesting platform is a wooden pole with a metal dish, not wood.)
Again, no sign of osprey in the nest or around it. There was an osprey sighted about 40m from nest on a fence eating a large fish, but the osprey was equal distance from the elementary school nest as well.
Today was the first time I found this nest. It was very hard to see the actual nest because the platform that it is on is very large and the nest is very small. There was a male osprey occupying the nest. It made eye contact with me then flew in a circle and then perched on the pole that stuck atop the nest.
Platform was just put up. There appeared to be a small nest in the midst of being built. I observed two Ospreys, one male and one female perched on the wooden post next to the nest. About five minutes later the male moved over onto the nest.