Approximate Hatch Weights:
~17g at hatching
~150-160g by 12 days old
~219g by 21 days old
~248g by 35 days old
Order: Strigiformes
Family: Strigidae
Common Name: Owls
Region: Broad Range
Chick Type: Altricial
Down: White down
Skin Color:
Bill: Hooked and gray to black
Foot Type: Semi-zygodactyl
Gape:
Gape Flanges:
Iris: Yellow
Legs and Feet: Feathered legs and raptorial feet
~3rd Week
![](https://sites.tufts.edu/babybirds/files/2019/04/fullsizeoutput_30d6.jpeg)
Photo by Peter Thiemann
~3rd Week
![](https://sites.tufts.edu/babybirds/files/2019/04/fullsizeoutput_30d7.jpeg)
Photo by Peter Thiemann
~3rd Week
![](https://sites.tufts.edu/babybirds/files/2019/04/fullsizeoutput_30d9.jpeg)
Photo by Peter Thiemann
~3rd Week
![](https://sites.tufts.edu/babybirds/files/2019/04/fullsizeoutput_30db.jpeg)
Photo by Peter Thiemann
~3rd Week
![](https://sites.tufts.edu/babybirds/files/2019/04/fullsizeoutput_30dd.jpeg)
Photo by Peter Thiemann
>4 Weeks
![](https://sites.tufts.edu/babybirds/files/2019/04/fullsizeoutput_30e0.jpeg)
Photo by Peter Thiemann
>4 Weeks
![](https://sites.tufts.edu/babybirds/files/2019/08/fullsizeoutput_4649.jpeg)
Photo by Lee Marcus