Owls

All photographs taken by Helmut Mueller at CGORS with the exception of the Barn Owl and Boreal Owl.

Nine species of owls have been trapped at CGORS
Barred Owl
Barn Owl
Boreal Owl
Eastern Screech-Owl
Great Horned Owl
Long-eared Owl
Northern Saw-whet Owl
Short-eared owl
Snowy Owl

Barred Owl

CGORS has trapped and processed 22 Barred Owls since 1952. The breakdown is as follows:

Immature: 13
Adult: 1
Unknown Age and Sex: 8

Barn Owl

CGORS has trapped and processed 1 Barn Owl on 9/19/1976. It was an AHY of undetermined sex.

Boreal Owl

CGORS has trapped and processed 3 Boreal Owls (1 in 1962 and 2 in 1995). One was recorded as an AHY male, and the other two were of undetermined age and sex.

Eastern Screech Owl

CGORS has trapped and processed 191 Eastern Screech Owls since 1952. The breakdown is as follows:

Immature: 71
Adult: 31
Unknown: 87

Great Horned Owl

CGORS has trapped and processed 63 Eastern Screech Owls since 1952. The breakdown is as follows:

Immature: 35
Adult: 10
Unknown: 18

Long-eared Owl

CGORS has trapped and processed 474 Long-eared Owls since 1952. The breakdown is as follows:

Immature: 201
Adult: 86
Unknown: 185

Northern Saw-whet Owl

CGORS has trapped and processed 7,529 Northern Saw-whet Owls since 1952. The breakdown is as follows:

Immature: 3,231
Adult: 3,838
Unknown: 414

Short-eared owl

CGORS has trapped and processed 7 Short-eared Owls since 1952. The breakdown is as follows:

Immature: 5
Unknown: 2

Snowy Owl

CGORS trapped two Snowy Owls in 1963. Both immature birds