Approximate Hatch Weights:
~1.5g at hatching
~2.2g by 1 day old
~3.2g by 2 days old
~4.8g by 3 days old
~6.1g by 4 days old
~7.5g by 5 days old
~8.5g by 6 days old
~9.0g by 7 days old
Order: Passeriformes
Family: Parulidae
Common Name: New World Warblers
Region: Broad Range
Chick Type: Altricial
Down: Sparse white down
Skin Color: Orange
Bill: Straight and pink to gray
Foot Type: Anisodactyl
Gape: Red
Gape Flanges: Yellow
Iris: Dark brown
Legs and Feet: Pink to gray legs and feet
Just Hatched
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.25.23-AM.jpg)
Photo by Mary M. Derouard
Just Hatched
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.27.02-AM.jpg)
Photo by Mary M. Derouard
Just Hatched
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.27.50-AM.jpg)
Photo by Mary M. Derouard
Just Hatched
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.28.39-AM.jpg)
Photo by Mary M. Derouard
1 Day Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.29.28-AM.jpg)
Photo by Mary M. Derouard
2 Days Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.30.20-AM.jpg)
Photo by Mary M. Derouard
2 Days Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.31.06-AM.jpg)
Photo by Mary M. Derouard
3 Days Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.31.51-AM.jpg)
Photo by Mary M. Derouard
3 Days Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.32.41-AM.jpg)
Photo by Mary M. Derouard
4 Days Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.33.31-AM.jpg)
Photo by Mary M. Derouard
5 Days Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.34.39-AM.jpg)
Photo by Mary M. Derouard
5 Days Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.35.29-AM.jpg)
Photo by Mary M. Derouard
5 Days Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.36.07-AM.jpg)
Photo by Mary M. Derouard
5 Days Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.36.54-AM.jpg)
Photo by Mary M. Derouard
6 Days Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.37.41-AM.jpg)
Photo by Mary M. Derouard
6 Days Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.38.38-AM.jpg)
Photo by Mary M. Derouard
8 Days Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.39.21-AM.jpg)
Photo by Mary M. Derouard
9 Days Old
![](https://sites.tufts.edu/babybirds/files/2018/04/Screen-Shot-2018-04-22-at-8.40.11-AM.jpg)
Photo by Mary M. Derouard
~2nd Week
![](https://sites.tufts.edu/babybirds/files/2018/06/35826246_10211839621778345_1440538993220386816_n.jpg)
Photo by Jayne Neville
~2nd Week - 7.7g
![](https://sites.tufts.edu/babybirds/files/2024/04/352810582_10100281270274504_789527783364443126_n-1.jpg)
Photo by Lauren Young, Avian Haven
~2nd Week - 7.7g
![](https://sites.tufts.edu/babybirds/files/2024/04/350358135_10100281270344364_6265789631663007615_n-1.jpg)
Photo by Lauren Young, Avian Haven
~2nd Week - 7.7g
![](https://sites.tufts.edu/babybirds/files/2024/04/353462995_10100281270354344_2581236354352538810_n-1.jpg)
Photo by Lauren Young, Avian Haven
~2nd Week - 7.7g
![](https://sites.tufts.edu/babybirds/files/2024/04/348606447_10100281270364324_3095696901577449405_n-1.jpg)
Photo by Lauren Young, Avian Haven
~2nd Week - 7.7g
![](https://sites.tufts.edu/babybirds/files/2024/04/351554736_10100281270379294_1869085514022818903_n-1.jpg)
Photo by Lauren Young, Avian Haven
~3rd Week
![](https://sites.tufts.edu/babybirds/files/2020/10/Rec-6774-YEWA-26-May-2018-Chavez-J.jpeg)
Photo by Jamie Chavez