Approximate Hatch Weights:
~0.62g at hatching
Gains ~0.47g/day from 1 day old to 18 days old
Order: Caprimulgiformes
Family: Trochilidae
Common Name: Hummingbirds
Region: Eastern
Chick Type: Altricial
Down: Sparse yellowish down
Skin Color: Blue-gray
Bill: Long and straight and orange-yellow then black
Foot Type: Anisodactyl
Gape: Orange-yellow
Gape Flanges: Yellow
Iris: Dark brown
Legs and Feet: Gray to brown legs and feet
Video by Dane County Humane Society’s Wildlife Center
Video by Delaney Smolinski, Tufts Wildlife Clinic
Video by Delaney Smolinski, Tufts Wildlife Clinic
~1st Week - 2.5g
![](https://sites.tufts.edu/babybirds/files/2019/08/fullsizeoutput_469e.jpeg)
Photo by Andrea Aiuto
~1st Week
![](https://sites.tufts.edu/babybirds/files/2020/09/48475707742_4e83494bcb_o.jpeg)
Photo by Dane County Humane Society's Wildlife Center
~2nd Week - 3g
![](https://sites.tufts.edu/babybirds/files/2019/02/fullsizeoutput_2abd.jpeg)
Photo by Dane County Humane Society's Wildlife Center
~2nd Week - 3g
![](https://sites.tufts.edu/babybirds/files/2019/02/fullsizeoutput_2abe.jpeg)
Photo by Dane County Humane Society's Wildlife Center
~2nd Week - 3g
![](https://sites.tufts.edu/babybirds/files/2019/02/fullsizeoutput_2adc.jpeg)
Photo by Dane County Humane Society's Wildlife Center
~2nd Week - 3g
![](https://sites.tufts.edu/babybirds/files/2019/02/fullsizeoutput_2adb.jpeg)
Photo by Dane County Humane Society's Wildlife Center
~2nd Week - 3g
![](https://sites.tufts.edu/babybirds/files/2019/02/fullsizeoutput_2add.jpeg)
Photo by Dane County Humane Society's Wildlife Center
~2nd Week - 3g
![](https://sites.tufts.edu/babybirds/files/2019/02/fullsizeoutput_2ade.jpeg)
Photo by Dane County Humane Society's Wildlife Center
~2nd Week - 3g
![](https://sites.tufts.edu/babybirds/files/2019/02/fullsizeoutput_2adf.jpeg)
Photo by Dane County Humane Society's Wildlife Center
~3rd Week - 3g
![](https://sites.tufts.edu/babybirds/files/2019/02/fullsizeoutput_2ae1.jpeg)
Photo by Dane County Humane Society's Wildlife Center
~3rd Week - 3g
![](https://sites.tufts.edu/babybirds/files/2019/02/fullsizeoutput_2ae2.jpeg)
Photo by Dane County Humane Society's Wildlife Center
~3rd Week
![](https://sites.tufts.edu/babybirds/files/2019/09/fullsizeoutput_48a2.jpeg)
Photo by Karyn Lesinski, Center for Wildlife
~3rd Week - 3g
![](https://sites.tufts.edu/babybirds/files/2019/02/fullsizeoutput_2ae3.jpeg)
Photo by Dane County Humane Society's Wildlife Center
~3rd Week - 3g
![](https://sites.tufts.edu/babybirds/files/2019/02/fullsizeoutput_2ae4.jpeg)
Photo by Dane County Humane Society's Wildlife Center
~3rd Week
![](https://sites.tufts.edu/babybirds/files/2018/04/IMG_3019.jpg)
Photo by Travis Beeler, Tufts Wildlife Clinic
~3rd Week - 1.2g
![](https://sites.tufts.edu/babybirds/files/2019/07/fullsizeoutput_4120.jpeg)
Photo by Andrea Aiuto
~3rd Week - 1.2g
![](https://sites.tufts.edu/babybirds/files/2019/07/fullsizeoutput_4122.jpeg)
Photo by Andrea Aiuto
~3rd Week
![](https://sites.tufts.edu/babybirds/files/2018/04/21222448_10155242658543347_1695800103_o.jpg)
Photo by Ingrid Hodel, WildCare Oklahoma
~3rd Week
![](https://sites.tufts.edu/babybirds/files/2018/04/21150228_1637353249630339_4759738220663855443_n.jpg)
Photo by Jessica Zorge
~4th Week
![](https://sites.tufts.edu/babybirds/files/2018/04/20954106_1631026053596392_1846604909014000552_n.jpg)
Photo by Jessica Zorge
~4th Week
![](https://sites.tufts.edu/babybirds/files/2018/04/21077323_1631026063596391_5944857204357610791_n.jpg)
Photo by Jessica Zorge
~4th Week
![](https://sites.tufts.edu/babybirds/files/2018/04/21742975_1650121428353521_4984916711208559621_n.jpg)
Photo by Jessica Zorge, Tufts Wildlife Clinic
~4th Week
![](https://sites.tufts.edu/babybirds/files/2018/04/21034722_1631026070263057_792823340065737735_n.jpg)
Photo by Jessica Zorge, Tufts Wildlife Clinic