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.
Nest is very large and well maintained. There is a female perched in the nest. Male osprey perched on nearby lamp post where it looks like there is a new nest forming. Male and female are calling back and forth to one another.
Male perched on goal post below nest, then flew to nest and perched. Female in nest, possibly incubating. Three very noisy parakeets going in and out of the base of the nest. Parakeet nest nearby is growing in size.
Male perched on nest. Parakeets building nest below osprey nest. 4 parakeets entered nest, hidden from view. Most likely no chicks, just hearing the hidden parakeets. Female flew around with an object, possibly a stick (not a fish). Unsure if it is stuck to her or simply odd behavior
Female perched by nest. Male originally flying nearby, then flew into nest (cannot see inside)
Three starlings perched below nest, lots of chirping - cannot determine if it is the starlings or chicks. Another female was perched about 100m away.
Nest is very large and well-maintained. Female osprey in the nest, male perched on a nearby light. Male and female appear to be calling to each other. Monk parakeets are living beneath the nest, 3 were visible.
Nest first observed 3/1/16. Numerous ospreys (4 or 5) seen in area. first 2 ospreys seen flying around and one osprey sitting in back nest possibly incubating. second opsrey landed and was sitting on side of nest. sexes unknown