🦜 A world in the atlas

Birds

North America lost ~3 billion birds since 1970; windows and cats are key threats.

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Birds

PHOTO VIA WIKIPEDIA, CC BY-SA

Least ConcernNear ThreatenedExtinct

The picture

Birds are vital pollinators, seed-spreaders and pest controllers, but North America alone has lost around 3 billion birds since 1970. Simple home fixes - bird-safe glass, native plants, keeping cats in - make a real difference.

The science

Class Aves. Many songbirds migrate thousands of kilometres, navigating by stars and magnetic fields.

In numbers

~3 billionBirds lost since 1970 (N. America)

Worth repeating at dinner

North America has lost roughly 3 billion breeding birds since 1970.

- Cornell Lab

Native plants can double the insect food available to backyard birds.

- Our World in Data

Some Arctic terns migrate pole to pole each year.

- WCS

What they face

Window collisions

Reflective glass kills large numbers of birds.

Cornell Lab

Outdoor cats

Free-roaming cats are a major human-linked cause of bird deaths.

American Bird Conservancy

What is already working

Bird-safe glass

Decals and patterned glass prevent collisions.

Native planting

Native gardens rebuild insect food webs.

Reasons for hope

Local rebounds

Native-plant gardens and protections boost some local bird numbers.

Meet them

Small actions that reach them

Set up a bird feeder & water
Clean feeders and window decals help birds and prevent collisions.
~20 min
Plant one native flower
Native plants feed local pollinators and birds far better than ornamentals.
~30 min
Keep cats indoors or supervised
Free-roaming cats are a leading human-linked cause of bird deaths.
~5 min
Make your windows bird-safe
Up to a billion birds a year die striking glass they can't see.
~20 min
Choose shade-grown or bird-friendly coffee
Shade coffee keeps forest canopy standing - vital habitat for migratory birds.
~5 min
Put up a nest box
Modern buildings lack the cavities swifts, tits and sparrows nest in.
~60 min

People doing the big work

Hopeling is also a pocket companion: one fact, one small act a day. Open the app