Baby birds, species by species

Clutch size, hatching time, days in the nest and nesting season for 202 North American birds.

Found a baby bird?

Feathered and hopping: a fledgling. Leave it; the parents are feeding it nearby.
Naked or with pin feathers: put it back in the nest if you can see it. Touching it won't cause the parents to abandon it.
Injured or caught by a cat: find a licensed wildlife rehabilitator at ahnow.org.

All species

American Crow45–56 days
American Goldfinch23–31 days
American Kestrel54–63 days
American Redstart19–22 days
American Robin25–27 days
American Three-toed Woodpecker33–40 days
American Tree Sparrow19–23 days
Anna's Hummingbird32–42 days
Ash-throated Flycatcher31–32 days
Bald Eagle90–134 days
Baltimore Oriole23–28 days
Band-tailed Pigeon43–50 days
Bank Swallow31–40 days
Barn Owl79–104 days
Barn Swallow27–44 days
Barred Owl56–75 days
Belted Kingfisher49–53 days
Bewick's Wren28–30 days
Black Phoebe33–38 days
Black Vulture98–139 days
Black-and-white Warbler18–24 days
Black-backed Woodpecker36–39 days
Black-billed Magpie41–50 days
Black-capped Chickadee23–30 days
Black-chinned Hummingbird33–37 days
Black-crowned Night Heron42–54 days
Black-headed Grosbeak23–26 days
Black-throated Sparrow21–24 days
Blue Grosbeak20–26 days
Blue Jay33–39 days
Boat-tailed Grackle33–38 days
Bobolink21–28 days
Bohemian Waxwing27–32 days
Brewer's Blackbird23–33 days
Broad-tailed Hummingbird37–45 days
Brown Creeper26–33 days
Brown Thrasher20–27 days
Brown-headed Cowbird18–25 days
Brown-headed Nuthatch31–34 days
Brown-headed Nuthatch32–33 days
Bullock's Oriole23–28 days
Burrowing Owl72–72 days
Bushtit26–28 days
Cactus Wren35–39 days
Cactus Wren33–39 days
Canada Goose49–52 days
Canada Jay40–46 days
Canyon Towhee19–20 days
Carolina Chickadee24–31 days
Carolina Wren22–32 days
Cassin's Finch23–28 days
Cedar Waxwing25–31 days
Chestnut-backed Chickadee30–39 days
Chimney Swift44–51 days
Chipping Sparrow19–27 days
Clark's Nutcracker36–42 days
Cliff Swallow30–44 days
Common Grackle25–29 days
Common Nighthawk33–38 days
Common Raven48–75 days
Common Redpoll20–25 days
Common Yellowthroat20–22 days
Cooper's Hawk57–70 days
Costa's Hummingbird35–41 days
Curve-billed Thrasher26–33 days
Dark-eyed Junco20–26 days
Dickcissel20–23 days
Downy Woodpecker30–33 days
Eastern Bluebird26–39 days
Eastern Kingbird30–34 days
Eastern Meadowlark23–28 days
Eastern Phoebe31–36 days
Eastern Screech-Owl54–62 days
Eastern Towhee22–25 days
Eastern Whip-poor-will39–41 days
Eastern Wood-Pewee27–32 days
Eurasian Collared-Dove29–37 days
Eurasian Tree Sparrow27–31 days
European Starling33–35 days
Evening Grosbeak24–28 days
Field Sparrow17–20 days
Fox Sparrow21–25 days
Gila Woodpecker42–42 days
Golden-crowned Kinglet30–38 days
Golden-crowned Sparrow20–23 days
Gray Catbird22–25 days
Gray-crowned Rosy-Finch30–34 days
Great Blue Heron74–111 days
Great Crested Flycatcher26–36 days
Great Egret44–51 days
Great Horned Owl70–86 days
Great-tailed Grackle33–37 days
Greater Roadrunner37–41 days
Green Heron35–38 days
Green-tailed Towhee22–27 days
Hairy Woodpecker39–45 days
Harris's Sparrow20–25 days
Hermit Thrush24–27 days
Hoary Redpoll18–28 days
Hooded Merganser50–65 days
Hooded Oriole26–28 days
Horned Lark18–22 days
House Finch25–33 days
House Sparrow24–28 days
House Wren24–33 days
Inca Dove25–31 days
Indigo Bunting20–28 days
Juniper Titmouse30–37 days
Ladder-backed Woodpecker33–33 days
Lapland Longspur18–24 days
Lark Sparrow20–22 days
Lazuli Bunting22–24 days
Least Flycatcher25–32 days
Lesser Goldfinch24–28 days
Lewis's Woodpecker40–50 days
Mallard47–54 days
Merlin53–67 days
Monk Parakeet64–68 days
Mountain Bluebird30–35 days
Mountain Chickadee32–35 days
Mourning Dove26–29 days
Northern Cardinal18–26 days
Northern Flicker35–40 days
Northern Mockingbird24–26 days
Northern Rough-winged Swallow31–37 days
Northern Saw-whet Owl54–63 days
Orange-crowned Warbler20–24 days
Orchard Oriole23–29 days
Osprey86–97 days
Ovenbird19–25 days
Painted Bunting23–26 days
Palm Warbler24–24 days
Peregrine Falcon68–77 days
Phainopepla33–34 days
Pileated Woodpecker39–49 days
Pine Grosbeak26–34 days
Pine Siskin27–28 days
Pine Warbler20–23 days
Pinyon Jay37–38 days
Prothonotary Warbler22–24 days
Purple Finch26–27 days
Purple Martin41–50 days
Pygmy Nuthatch34–38 days
Pyrrhuloxia24–24 days
Red Crossbill27–41 days
Red-bellied Woodpecker34–39 days
Red-breasted Nuthatch30–34 days
Red-cockaded Woodpecker36–42 days
Red-eyed Vireo21–27 days
Red-headed Woodpecker36–45 days
Red-shouldered Hawk67–85 days
Red-tailed Hawk70–81 days
Red-winged Blackbird22–27 days
Rock Pigeon42–51 days
Rose-breasted Grosbeak20–26 days
Ruby-crowned Kinglet24–33 days
Ruby-throated Hummingbird30–36 days
Rufous Hummingbird36–38 days
Rusty Blackbird25–27 days
Savannah Sparrow18–24 days
Say's Phoebe26–30 days
Scarlet Tanager21–29 days
Scissor-tailed Flycatcher27–33 days
Sharp-shinned Hawk51–63 days
Snow Bunting20–33 days
Song Sparrow21–26 days
Spotted Towhee22–26 days
Steller's Jay32–39 days
Swamp Sparrow21–28 days
Tree Swallow26–45 days
Tufted Titmouse27–30 days
Turkey Vulture88–124 days
Varied Bunting22–25 days
Varied Thrush25–27 days
Verdin31–39 days
Vermilion Flycatcher28–31 days
Vesper Sparrow18–27 days
Violet-green Swallow29–42 days
Warbling Vireo24–30 days
Western Bluebird31–42 days
Western Kingbird34–36 days
Western Screech-Owl47–60 days
Western Tanager24–28 days
White-breasted Nuthatch31–40 days
White-crowned Sparrow21–24 days
White-eyed Vireo22–26 days
White-headed Woodpecker40–40 days
White-throated Sparrow18–26 days
White-winged Crossbill28–36 days
White-winged Dove27–30 days
Wild Turkey49–55 days
Winter Wren29–35 days
Wood Duck52–61 days
Wood Thrush23–29 days
Woodhouse's Scrub-Jay33–35 days
Yellow Warbler18–25 days
Yellow-bellied Sapsucker35–42 days
Yellow-billed Cuckoo16–20 days
Yellow-breasted Chat19–23 days
Yellow-headed Blackbird20–25 days
Yellow-rumped Warbler22–27 days
Yellow-throated Warbler20–23 days