Nest is in Frenchman Canyon approx. one mile below the dam on the east side of the road. It is on a side branch about 15 feet below the top of a 90 foot dead Jeffery Pine, and on the same ridge line as Nest #1069 which blew down this past winter.
What to look for
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.
6/29/17 One adult observed low in nest.
7/11/17 Adult on on edge of nest, possibly feeding young. Cannot see to tell if young are present.
7/19/17 No activity at nest, appears abandoned. Dates suggest at least one fledged before 7/11/17..
4/11/17 This nest was blown off the tree.
5/2/17 The nest has been rebuilt on the same limb.
5/8/17 One adult in the nest, one alongside the nest.
5/19/17 One low in nest, incubating posture.
6/2/17 Hard to see if one is in nest in low posture, but one seen flying in area.
This new nest is, I believe, being built by the same pair that had occupied Nest #1069, the first nest I had observed here many years ago, before this survey began. #1069 blew down over the winter. It does not appear to be completed, but one bird was perched on the edge of what nest they had.