Some assume the mother is a daughter or granddaughter of Pale Male & Lola due to her coloring, but no way to know for sure.
I found a report at
Urban Hawks Bruce Yolton's blog...
Sad News At Riverside - May 8, 2010
In the high wind late today, the Riverside Park nest was destroyed and all three eyasses perished. I have not been to the nest site yet, so all I know is second hand. Reports from fellow hawk watchers say the eyasses were already dead when they were found among the remains of the nest, so they died quickly.
The mother was seen looking where the nest had been, and then flew off. The remains of the nest are on the ground, which includes lining material and a half eaten pigeon. After a day or two expect the parents to rebuild the nest, although it is likely that this replacement will not be used until next year, if not at all.
Leslie Day reminded me that two years ago, those eyasses also perished the day before Mother's Day. This family seems to catch all the bad breaks.
This is just another reminder of the high mortality rate for Red-tailed Hawk babies. Over 70% die in their first year.