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.
I noticed on Sunday 6/11, there was an hour or two here and there with no adult at the nest. Mom returned for the night and was there in the morning when I woke at 6am. Later Monday afternoon, as storms were rolling in there was no adult in sight.
There was been no adult at the nest for almost 24 hours. While I am not positive there was definitely eggs, I can't imagine why she would've sat on the nest 24 hours a day since early April. I have no idea what could've happened as the weather has been good. So sad. I had hoped that year three would be the magic year!
Alot has happened in six weeks. I was positive we had eggs as Eleanor was not leaving the nest except to eat the fish her mate brought. Unfortunately we had some extended stormy weather that brought extremely high winds around Mother's Day and Edward did not come to the nest or bring food for 5 days. On Tuesday May 10, Eleanor had no choice but to leave the nest to feed herself. During the last two weeks of May I would occasionally see one osprey or another at the nest/perch, but I would rarely see them together. I can't be sure that something did not happen to Edward. Yesterday, 5/31, a pair of Osprey were back at the perch/nest all day. The male is bring nesting material (although the nest is perfectly intact) and fish. They have been mating. They are still both there this morning. I am wondering if this is a new pair....or just a new male? Seems very late in the season for eggs.
We have had a terrible few days of heavy rain, but with the sun shining this morning Edward and Eleanor have been very busy! Fish for breakfast, lots of nesting material coming to the platform and some copulating in between! Fingers crossed for viable eggs this year!
Edward has spent the last few days eating a lot of fish at the platform and his perch. Eleanor occasionally joins him. This morning they were both at the platform and Edward was starting to bring in sticks for nesting. It appears that last seasons nest was completely destroyed over the winter.
Edward and Eleanor arrived today. They spent most of the day just perched on the platform - there has been no nest building (other than one large stick) just yet. Of course we are having some bad storms here this afternoon and they will last well into the early morning hours. They are hanging on for dear life out there!