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.
Been watching for adults for two weeks now. No sign of them. We have had really high winds with may have contributed to the increase in the collapsing of one side of nest. At one point it looked like they were repairing the nest. ( 2wks ago) .
March 29 2016 saw a a parent bringing sticks and vines up to nest. A closer look ( nest is really high up ) from a different vantage view it appears that there was a partial nest collapse over the winter. There is still a large portion left horizontal.
On March 30 I noticed two adults at the nest one IN the nest and one perched a near by pole over the nest. Do to the height of the cell tower it is not possible to see if there is any brooding at this time. I am watching for teh adult to bring food to the nest in the next few weeks. ;)