Three Owlets LogoThree Owlets Logo 2Owls In The Park

Vancouver, British Columbia

Statistics - Fledging

The table below shows the number of owlets fledged by each breeding pair in the years for which I have any reliable data. I am still gathering information from my records. Note that in the earlier years I was not fully aware of the multiple territories and hence was not visiting all the areas.

Year

East

North

West

South

Total

Notes

2001

2

1?

n/a

n/a

2-3

I did see adults in all territories, but was not active in the western or southern areas. There may have been more than one juvenile in the north. First year I was aware of juveniles (photo records).

2002

1

2

n/a

n/a

3

The northern young were to the south of their territory. Is it possible that there was no north-west/south split prior to this? The eastern owls were seen most often around the Miniature Railway.

2003

?

3

n/a

n/a

3?

This may have been the year that I observed the territorial dispute between northern and western owls (but I need to compare records with the other people present at the time).

2004

?

2

n/a

n/a

2?

At the time I was not aware of the existence of a western territory, so was not monitoring the area.

2005

1

1

n/a

n/a

2

The eastern owlet was found dead near Beaver Lake on June 30th.

2006

1?

1

3

n/a

5?

The first year that I was fully aware of the western territory. Additional people were monitoring that year.

2007

2?

2

1

n/a

5?

Early in the season 2 juveniles were observed in the east, but later only one, then it was found dead near Beaver Lake on October 5th. The body is in the hands of the Ecology Society. Initial examination revealed malnutrition.

2008

0

1

2

n/a

3

The Northern juvenile was rescued after a fledging accident. Later released and observed feeding. Only the occasional adult was seen in the east - suggesting breeding failure (or none tried).

2009

0

2

1

0

3

There are currently 3 healthy owlets in the park (August 19) - actively hunting for themselves yet still being fed by parents. The owls at the Southern (new) and Eastern sites appear to have fledged no young this year.

I would welcome any observations from others that could augment (or correct) these statistics.