Family History

Demography Study

Burrowing Owl Statistics
All of the data below is derived from the South Bay Burrowing Owl Demography Study.

The 2001 Breeding Season at Mission College

# Of Nest Inhabited: 8
# Of Chicks Born at Mission This Season: 22 chicks

There were a total of eight burrows that had some activity this breeding season at Mission College. Burrowing Owl specialists for the South Bay Burrowing Owl Demography Study took all of the following observations and data. The scientists identified every individual owl and tracked they're activities from 1998 till 2001.

Nest A: Home to Athena and Ahab.
Ahab has only one leg, hence the name.
Athena was born at Mission in the year 2000 and had made it her home ever since.
This couple produced no chicks this breeding season.

Nest B: Home to Betty and Barney.
The couple chose the artificial burrows that were built by the members of EAA (link to eaa page) this past fall.
Betty was born at Mission in 2000.
Barney was born at Tasman in 1999. He then migrated to Mission in the year 2000 and has been here ever since.
Betty and Barney had the most chicks out of all its neighbors at Mission College. They had a total of 5 chicks.

Nest C: Home to Claudia and Chris.
Claudia is a shoreline chick born in the year 1999. She moved to Mission in 2000.
Chris was an adult at Mission in the year 1998, when the research had begun. He should be at least 4 years old.
Claudia and Chris were blessed with 2 chicks.

Nest E: Home to Elaine and Eddie.
Elaine was an adult at Mission in 1998. She should be at least 4 years old.
Eddie is unidentified at the moment. So, we don't know where he's from.
Elaine and Eddie had 3 chicks.

Nest D: Home to Diana and Darryl.
Diana was born in Sunnyvale in 1999. She fledged to Shoreline in 2000. In 2001, she made her way to Mission College.
Darryl was a Mission College chick from 2000. Darryl and Frankie are brothers.
The couple had a total of 2 chicks.

Nest F: Home to Fiona and Frankie.
Fiona was an adult at Mission in year 2000. She should be more than 2 years old.
Frankie was born at Mission in 2000. Frankie and Darryl are brothers.
This couple had 4 chicks.

Nest G: Home to Gina and Glenn.
Gina was born at Mission College in 1999 where a part of the parking lot is now. She's 2 years old.
Glenn was born at Mission in 2000. Glenn is Frankies' and Darryl's half brother.
Gina and Glenn had 2 chicks.

Nest H: Home to Heidi and Hercules.
Heidi is a mysterious one. No data on her.
Hercules was found at Mission as an adult from 1998. He should be at least 4 years old. Hercules is the father of Frankie, Darryl, and Glenn.
The couple had 4 chicks.

Distance Owls Migrated To / From Mission College

Productivity Statistics
1998: 40% productivity
15 pair of breeding burrowing owls---6 successful pair produced 14 chicks

1999: 38% productivity
8 pair of breeding burrowing owls---3 successful pair produced 15 chicks

2000: 86% productivity
7 pair of breeding burrowing owls---6 successful pair produced 13 chicks
(only 10 chicks successfully fledged)

2001: 8 pair of breeding burrowing owls

South Bay Burrowing Owl Demography Study