Multiple different subspecies in different regions that vary widely in appearance.
Approximate Hatch Weights:
~2g at hatching
~7.4g by 3 days old
~14.1g by 6 days old
~17.3g by 11 days old
Order: Passeriformes
Family: Passerellidae
Common Name: New World Sparrows
Region: Broad Range
Chick Type: Altricial
Down: Sparse gray down
Skin Color: Pink
Bill: Short and conical
Foot Type: Anisodactyl
Gape: Red-pink
Gape Flanges: Yellow
Iris: Dark brown
Legs and Feet: Pink to brown legs and feet
Video by Cheri Fromm
Video by Ciera Duits-Cavanaugh
Video by Cheri Fromm
Video by Cheri Fromm
Eggs
![](https://sites.tufts.edu/babybirds/files/2020/10/Rec-9312-DEJU-5-May-2020-Jackson-I.jpeg)
Photo by Ian Jackson
~1st Week - 6.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4980.jpeg)
Photo by Cheri Fromm
~1st Week - 6.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4984.jpeg)
Photo by Cheri Fromm
~1st Week - 6.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4987.jpeg)
Photo by Cheri Fromm
~1st Week - 6.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49a1.jpeg)
Photo by Cheri Fromm
~1st Week - 6.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49a4.jpeg)
Photo by Cheri Fromm
~1st Week - 9g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49a6.jpeg)
Photo by Cheri Fromm
~1st Week - 9g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49a7.jpeg)
Photo by Cheri Fromm
~1st Week - 9g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49a8.jpeg)
Photo by Cheri Fromm
~1st Week - 9g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49aa.jpeg)
Photo by Cheri Fromm
~1st Week - 9g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49ad.jpeg)
Photo by Cheri Fromm
~1st Week (Oregon)
![](https://sites.tufts.edu/babybirds/files/2019/04/fullsizeoutput_362d.jpeg)
Photo by Ashley Damm
~1st Week (Oregon)
![](https://sites.tufts.edu/babybirds/files/2019/04/fullsizeoutput_362a.jpeg)
Photo by Ashley Damm
~1st Week (Oregon)
![](https://sites.tufts.edu/babybirds/files/2019/04/fullsizeoutput_3622.jpeg)
Photo by Ashley Damm
~1st Week - 10g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49b4.jpeg)
Photo by Cheri Fromm
~1st Week - 10g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49b5.jpeg)
Photo by Cheri Fromm
~1st Week - 10g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49b7.jpeg)
Photo by Cheri Fromm
~1st Week - 10g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49b1.jpeg)
Photo by Cheri Fromm
~1st Week - 10g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49ba.jpeg)
Photo by Cheri Fromm
~1st Week - 10g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49bd.jpeg)
Photo by Cheri Fromm
~1st Week - 11g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49bf.jpeg)
Photo by Cheri Fromm
~1st Week - 11g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49c1.jpeg)
Photo by Cheri Fromm
~1st Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49d1.jpeg)
Photo by Cheri Fromm
~1st Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49d3.jpeg)
Photo by Cheri Fromm
~1st Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49c3.jpeg)
Photo by Cheri Fromm
~1st Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49c5.jpeg)
Photo by Cheri Fromm
~1st Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49cd.jpeg)
Photo by Cheri Fromm
~1st Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49cf.jpeg)
Photo by Cheri Fromm
~1st Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/11/fullsizeoutput_49cb.jpeg)
Photo by Cheri Fromm
~2nd Week - 14.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49d8.jpeg)
Photo by Cheri Fromm
~2nd Week - avg 14.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49e0.jpeg)
Photo by Cheri Fromm
~2nd Week - avg 14.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49e5.jpeg)
Photo by Cheri Fromm
~2nd Week - avg 14.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49e7.jpeg)
Photo by Cheri Fromm
~2nd Week - avg 15.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49e9.jpeg)
Photo by Cheri Fromm
~2nd Week - avg 15.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49eb.jpeg)
Photo by Cheri Fromm
~2nd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49e2.jpeg)
Photo by Cheri Fromm
~2nd Week - avg 15.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49ee.jpeg)
Photo by Cheri Fromm
~2nd Week - avg 15.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49f5.jpeg)
Photo by Cheri Fromm
~2nd Week (Oregon)
![](https://sites.tufts.edu/babybirds/files/2018/03/Dark-Eyes-Junco-3-Week.jpg)
Photo by Ashley Damm
~2nd Week (Oregon)
![](https://sites.tufts.edu/babybirds/files/2018/03/Dark-Eyes-Junco-4-Week.jpg)
Photo by Marina Dimitrov
~2nd Week - 15.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49fb.jpeg)
Photo by Cheri Fromm
~2nd Week - 15.5g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_49fe.jpeg)
Photo by Cheri Fromm
~2nd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a04.jpeg)
Photo by Cheri Fromm
~2nd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a06.jpeg)
Photo by Cheri Fromm
~2nd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a09.jpeg)
Photo by Cheri Fromm
~2nd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a0b.jpeg)
Photo by Cheri Fromm
~2nd Week (Oregon)
![](https://sites.tufts.edu/babybirds/files/2020/02/fullsizeoutput_4fe6.jpeg)
Photo by Jessie Zamichow, Santa Barbara Wildlife Care Network
~2nd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a11.jpeg)
Photo by Cheri Fromm
~2nd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a15.jpeg)
Photo by Cheri Fromm
~2nd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a70.jpeg)
Photo by Cheri Fromm
~2nd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a1e.jpeg)
Photo by Cheri Fromm
~2nd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a17.jpeg)
Photo by Cheri Fromm
~2nd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a22.jpeg)
Photo by Cheri Fromm
~2nd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a19.jpeg)
Photo by Cheri Fromm
~2nd Week - 18g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a26.jpeg)
Photo by Cheri Fromm
~2nd Week - 18g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a2a.jpeg)
Photo by Cheri Fromm
~2nd Week - 18g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a2c.jpeg)
Photo by Cheri Fromm
~3rd Week (Oregon)
![](https://sites.tufts.edu/babybirds/files/2020/06/DSC00216.jpeg)
Photo by Mirra Tubiola, Santa Barbara Wildlife Care Network
~3rd Week (Oregon)
![](https://sites.tufts.edu/babybirds/files/2020/06/DSC00218.jpeg)
Photo by Mirra Tubiola, Santa Barbara Wildlife Care Network
~3rd Week (Oregon)
![](https://sites.tufts.edu/babybirds/files/2020/06/DSC00217.jpeg)
Photo by Mirra Tubiola, Santa Barbara Wildlife Care Network
~3rd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a20.jpeg)
Photo by Cheri Fromm
~3rd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a24.jpeg)
Photo by Cheri Fromm
~3rd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/11/fullsizeoutput_4a2e.jpeg)
Photo by Cheri Fromm
~3rd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a30.jpeg)
Photo by Cheri Fromm
~3rd Week (Oregon)
![](https://sites.tufts.edu/babybirds/files/2020/02/fullsizeoutput_4fe8.jpeg)
Photo by Jessie Zamichow, Santa Barbara Wildlife Care Network
~3rd Week (Oregon)
![](https://sites.tufts.edu/babybirds/files/2020/02/fullsizeoutput_4fea.jpeg)
Photo by Jessie Zamichow, Santa Barbara Wildlife Care Network
~3rd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a32.jpeg)
Photo by Cheri Fromm
~3rd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a34.jpeg)
Photo by Cheri Fromm
~3rd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a36.jpeg)
Photo by Cheri Fromm
~3rd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a38.jpeg)
Photo by Cheri Fromm
~3rd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a3c.jpeg)
Photo by Cheri Fromm
~3rd Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a3e.jpeg)
Photo by Cheri Fromm
~3rd Week - 17g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a40.jpeg)
Photo by Cheri Fromm
~3rd Week - 17g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a42.jpeg)
Photo by Cheri Fromm
~3rd Week - 17g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a44.jpeg)
Photo by Cheri Fromm
~3rd Week - 17g (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a46.jpeg)
Photo by Cheri Fromm
~4th Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a48.jpeg)
Photo by Cheri Fromm
~4th Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a4b.jpeg)
Photo by Cheri Fromm
~4th Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a4d.jpeg)
Photo by Cheri Fromm
~4th Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a50.jpeg)
Photo by Cheri Fromm
~4th Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a52.jpeg)
Photo by Cheri Fromm
~4th Week (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a53.jpeg)
Photo by Cheri Fromm
>4 Weeks (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a5c.jpeg)
Photo by Cheri Fromm
>4 Weeks (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a61.jpeg)
Photo by Cheri Fromm
>4 Weeks (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a5d.jpeg)
Photo by Cheri Fromm
>4 Weeks (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a66.jpeg)
Photo by Cheri Fromm
>4 Weeks (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a6d.jpeg)
Photo by Cheri Fromm
>4 Weeks (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a6a.jpeg)
Photo by Cheri Fromm
>4 Weeks (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a68.jpeg)
Photo by Cheri Fromm
>4 Weeks (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/20191003_133701.jpg)
Photo by Cheri Fromm
>4 Weeks (Red-backed)
![](https://sites.tufts.edu/babybirds/files/2019/10/fullsizeoutput_4a6f.jpeg)
Photo by Cheri Fromm
>4 Weeks (Oregon)
![](https://sites.tufts.edu/babybirds/files/2020/04/juvenile-Dark-eyed-Junco-Oregon-Race.jpeg)
Photo by Aaron Budgor