Top 20 Common Birds in Decline

Audubon's unprecedented analysis of forty years of citizen-science bird population data from our own Christmas Bird Count plus the Breeding Bird Survey reveals the alarming decline of many of our most common and beloved birds.

Since 1967 the average population of the common birds in steepest decline has fallen by 68 percent; some individual species nose-dived as much as 80 percent. All 20 birds on the national Common Birds in Decline list lost at least half their populations in just four decades.

The findings point to serious problems with both local habitats and national environmental trends. Only citizen action can make a difference for the birds and the state of our future.

To find out more, including a detailed look at the top 20 species involved visit the Common Birds in Decline website.

American Bittern

Botaurus lentiginosus

Bird Sound
Type: Species_profile | From: National Audubon Society Birds
  • 3,000,000

Black-throated Sparrow

Amphispiza bilineata

Bird Sound
Type: Species_profile | From: National Audubon Society Birds
  • 20 million

Boreal Chickadee

Parus hudsonicus

Bird Sound
Type: Species_profile | From: National Audubon Society Birds
  • 5.2 million

Common Grackle

Quiscalus quiscula

Bird Sound
Type: Species_profile | From: National Audubon Society Birds
  • 73 million

Common Tern

Sterna hirundo

Bird Sound
Type: Species_profile | From: National Audubon Society Birds
  • 2,700,000

Eastern Meadowlark

Sturnella magna

Bird Sound
Type: Species_profile | From: National Audubon Society Birds
  • 6.9 million

Evening Grosbeak

Hesperiphona vespertina

Bird Sound
Type: Species_profile | From: National Audubon Society Birds
  • 3.8 million

Field Sparrow

Spizella pusilla

Bird Sound
Type: Species_profile | From: National Audubon Society Birds
  • 5.8 million

Grasshopper Sparrow

Ammodramus savannarum

Bird Sound
Type: Species_profile | From: National Audubon Society Birds
  • 11 million

Greater Scaup

Aythya marila

Bird Sound
Type: Species_profile | From: National Audubon Society Birds
  • 1,300,000