For many extinct species all we have left is the name.
To read the name is to remember, however briefly, and memorialize.

Read the name of an extinct bird
Drop acorn in the hole
Repeat

 

Alaotra Grebe
Aldabra Brush-warbler
Amaui
Amsterdam Island Duck
Ascension Flightless Crake
Atitlan Grebe
Auckland Island Merganser
Bar-winged Rail
Black Mamo
Black-fronted Parakeet
Bogota Sunangel
Bonin Grosbeak
Bonin Thrush
Bonin Wood Pigeon
Brace’s Emerald
Broad-billed Parrot
Canarian Black Oystercatcher
Carolina Parakeet
Chatham Island Bellbird
Chatham Island Coot
Chatham Island Duck
Chatham Island Fernbird
Chatham Island Rail
Chatham Islands Raven
Coastal Moa
Colombian Grebe
Crested Moa
Cuban Red Macaw
Delalande’s Coua
Dieffenbach’s Rail
Dodo
Dominican Green-and-Yellow Macaw
Double-Banded Argus
Eastern Moa
Eiao Monarch
Eyles’s Harrier
Finsch’s Duck
Forbes’s Snipe
Gould’s Emerald
Grand Cayman Thrush
Great Auk
Great Elephantbird
Greater Akialoa
Greater ‘Amakihi
Greater Koa-finch
Guadalupe Caracara
Guadeloupe Amazon
Guadeloupe Conure
Guadeloupe Red Macaw
Guam Flycatcher
Haast’s Eagle
Hawaii Mamo
Hawai’i ‘O’o
Hawaiian Crake
Hawkin’s Rail
Heavy-footed Moa
Hodgens’ Waterhen
Huia
Jamaican Red Macaw
Kamao
Kangaroo Island Emu
Kaua’i ‘O’o
King Island Emu
Kioea
Kona Grosbeak
Kosrae Crake
Kusaie Island Starling
Labrador Duck
Lanai Hookbill
Large St. helena Petrel
Laughing Owl
Laysan Crake
Lesser Akialoa
Lesser Koa-finch
Little Bush Moa
Liverpool Pigeon
Lord Howe Gerygone
Lord Howe Swamphen
Lord Howe White-eye
Mappin’s Moa
Mariana Mallard
Martinique Macaw
Mascarene Coot
Mascarene Parrot
Matinique Amazon
Maupiti Monarch
Mauritian Duck
Mauritian Shelduck
Mauritius Blue Pigeon
Mauritius Grey Parrot
Mauritius Night-heron
Mauritius Owl
Miller’s Rail
Molokai Creeper
Molokai ‘O’o
Mysterious Starling
New Caledonia Gallinule
New Zealand Bush Wren
New Zealand Coot
New Zealand Little Bittern
New Zealand Owlet-nightjar
New Zealand Quail
New Zealand Raven
New Zealand Snipe-rail
Newton’s Parakeet
Norfolk Island Ground-dove
Norfolk Island Kaka
Norfolk Starling
North Island Adzebill
North Island Giant Moa
North Island Goose
North Island Piopio
North Island Takahe
Nuku Hiva Monarch
O’ahu ‘O’o
Paradise Parrot
Passenger Pigeon
Raiatea Parakeet
Red Rail
Red-headed Green Macaw
Red-moustached Fruit-dove
Red-tailed Blue-and-Yellow Macaw
Réunion Flightless Ibis
Réunion Gallinule
Réunion Kestrel
Réunion Night-heron
Réunion Owl
Réunion Pigeon
Réunion Shelduck
Réunion Starling
Rodrigues Night-heron
Rodrigues Owl
Rodrigues Parrot
Rodrigues Pigeon
Rodrigues Rail
Rodrigues Solitaire
Rodrigues Starling
Ryukyu Pigeon
Scarlett’s Duck
Seychelles Parakeet
Slender-billed Grackle
Solomon Island Crowned Pigeon
South Island Adzebill
South Island Giant Moa
South Island Goose
South Island Piopio
Spectacled Cormorant
St. Helena Bulwer’s Petrel
St. Helena Crake
St. Helena Cuckoo
St. Helena Dove
St. Helena Hoopoe
St. Helena Rail
Stephens Island Wren
Stout-legged Moa
Tahiti Rail
Tahitian Sandpiper
Tanna Ground-dove
Thick-billed Ground Dove
Tristan Moorhen
Ua Pou Monarch
Ula-’Ai-Hawane
Upland Moa
Waitaha Penguin
Wake Island Rail
White-winged Sandpiper

Globally extinct birds from the IUCN 2011 list.