Approximate Hatch Weights:
~1.3g at hatching
~2g by 1 day old
~10.5g by 10 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: Pale yellow
Iris: Dark brown
Legs and Feet: Pink legs and feet
Video by Connie Black
Video from Tufts Wildlife Clinic
Video by Brenda Varvarigos
Video by Brenda Varvarigos
Egg

Photo by Kimberly Bishop
Egg

Photo from Nebraska Wildlife Rehab
Just Hatched

Photo by Laura Kintz
1 Day Old

Photo by Laura Kintz
2 Days Old

Photo by Laura Kintz
3 Days Old

Photo by Laura Kintz
4 Days Old

Photo by Laura Kintz
4 Days Old

Photo by Laura Kintz
4 Days Old

Photo by Connie Black
4 Days Old

Photo by Connie Black
4 Days Old

Photo by Connie Black
4 Days Old

Photo by Connie Black
4 Days Old

Photo by Connie Black
~1st Week - 5g

Photo by Ashley Kramer, Tufts Wildlife Clinic
~1st Week - 5g

Photo by Ashley Kramer, Tufts Wildlife Clinic
5 Days Old

Photo by Connie Black
5 Days Old

Photo by Connie Black
5 Days Old

Photo by Connie Black
5 Days Old

Photo by Connie Black
5 Days Old

Photo by Connie Black
5 Days Old

Photo by Laura Kintz
~1st Week - 7g

Photo from Tufts Wildlife Clinic, grid squares = 1 inch
~1st Week - 7g

Photo from Tufts Wildlife Clinic, grid squares = 1 inch
~1st Week - 4.9g

Photo from Dane County Humane Society's Wildlife Center
~1st Week - 4.9g

Photo from Dane County Humane Society's Wildlife Center
~1st Week - 6g

Photo by Kimberly Bishop
~1st Week - 6g

Photo by Kimberly Bishop
~1st Week - 11g

Photo by Brenda Varvarigos
~1st Week - 11g

Photo by Brenda Varvarigos
6 Days Old

Photo by Connie Black
6 Days Old

Photo by Connie Black
6 Days Old

Photo by Connie Black
6 Days Old

Photo by Laura Kintz
6 Days Old

Photo by Laura Kintz
~1st Week

Photo by Maureen Eiger, Help Wild Birds
7 Days Old

Photo by Connie Black
7 Days Old

Photo by Connie Black
~1st Week - 9.5g

Photo by Katie Deline-Ray
~1st Week - 9.5g

Photo by Katie Deline-Ray
~1st Week - 9.5g

Photo by Katie Deline-Ray
~1st Week - 9.5g

Photo by Katie Deline-Ray
~1st Week - 9.5g

Photo by Katie Deline-Ray
7 Days Old

Photo by Laura Kintz
7 Days Old

Photo by Laura Kintz
~2nd Week - 12g

Photo by Brenda Varvarigos
8 Days Old

Photo by Connie Black
8 Days Old

Photo by Connie Black
8 Days Old

Photo by Connie Black
8 Days Old

Photo by Connie Black
8 Days Old

Photo by Connie Black
8 Days Old

Photo by Connie Black
8 Days Old

Photo by Connie Black
8 Days Old

Photo by Connie Black
8 Days Old

Photo by Laura Kintz
8 Days Old

Photo by Laura Kintz
9 Days Old

Photo by Connie Black
9 Days Old

Photo by Connie Black
9 Days Old

Photo by Connie Black
9 Days Old

Photo by Laura Kintz
10 Days Old

Photo by Connie Black
11 Days Old

Photo by Connie Black
11 Days Old

Photo by Connie Black
11 Days Old

Photo by Connie Black
~2nd Week

Photo from Tufts Wildlife Clinic
~2nd Week

Photo by Annie Le, Tufts Wildlife Clinic
~2nd Week

Photo by Jen Osburn Eliot, Wildlife Images Rehab Center
~2nd Week

Photo by Jen Osburn Eliot, Wildlife Images Rehab Center
15 Days Old

Photo by Connie Black
20 Days Old

Photo by Connie Black
~3rd Week

Photo by Andrea Aiuto
~4th Week

Photo by Andrea Aiuto