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.
Still large nest. Small traffic cone and "no diving" sign embedded in nest. 1 osprey returned to nest and was attentive to nest. may have seen feeding behavior to possible chicks. Then sat down low in nest.
The nest appears to be in even better condition despite the traffic cone which is still on the light pole as well. 1 osprey was seen on the tree at the end of the courts 100m away and there was a male on Tennis Nest #1.
The nest was remade! It appears to be fully formed but the court owners might be trying to stop them from nesting on the light poles because there is a traffic cone with wires stuck into it also on top of the light post. 3 osprey were seen very close to the nest but none were in it. 2 Females 1 Male.