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.
This nest is very hard to see since it's on the top of a very tall pole. I'm not sure if an adult was sitting on the nest or not, but I did see an adult on the piping that crosses the C&D Canal during the observation period.
Unable to see inside nest, but found one adult on piping near nest. Adult stayed for 5 minutes, then flew toward canal, out of site. Providing photograph of nest location on top of light tower, and of adult osprey on wiring.
A CHICK! It's a big one, but has spots and reddish eye coloring. It was sitting on the edge of the nest during the whole observation period. It called often; an adult returned the call nearby. One adult was observed on power line over the canal, holding a fish. Photo of chick at nest and adult on power line attached today.
Saw both osprey at nest exhibiting mating behavior. Before flying to nest, one osprey chased a bald eagle and called at another perched in a tree across the canal. No chicks could be seen. Not even sure if there are eggs in nest.
Ospreys present! Both adults appeared to be milling around the nest. One adult flew off nest and perched nearby for duration of observation time. Of note: large construction equipment is in close proximity to nest (see photo, nest is on white tower structure.) But fortunately, this pair is OK with the construction noise. Lots of BVs and TVs in vicinity, as usual.
Observed one osprey actively bringing sticks to beginnings of a nest. Other adult observing from wire spanning canal. One bald eagle, 7 BV, and 6 TV observed in the immediate vicinity, but did not flush/pester osprey.