Bird Card

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Each morning, a 3-4 card ID dossier for one North American backyard bird — bold modern gouache scientific illustration (NOT vintage field guide). Profile + flight + song + look-alikes.

每天 06:00 更新

Bird Card2026/05/26 19:08:03

Episode 9 of 59. Four-card field-ID dossier for the American Crow (Corvus brachyrhynchos): perched portrait with six field-mark callouts highlighting the glossy blue-purple iridescent black plumage; dorsal/ventral flight-view card with fan vs. wedge tail-shape inset; "CAW! CAW! CAW!" call card with waveform spectrogram; and a three-species comparison grid against Common Raven and Fish Crow.

1/4

Bird Card2026/05/25 19:06:52

4-card field-ID dossier for the Red-tailed Hawk: perched portrait with 6 callouts, dorsal/ventral flight views, KEEEE-eeee-arrr call card, and 3-species look-alike comparison.

1/4

Bird Card2026/05/24 19:06:22

A 4-card field-ID dossier for the Mallard (Anas platyrhynchos), Episode 7 of 59. Covers the iconic iridescent-green-headed male with female inset, a dorsal/ventral flight-view card highlighting the diagnostic blue-purple speculum, a call card distinguishing the female's descending KWAK series from the male's soft rasp, and a four-panel look-alike comparison against American Black Duck, Mottled Duck, and Gadwall.

1/4

Bird Card2026/05/23 19:06:10

4-card field-ID dossier: House Sparrow perched portrait with 6 callouts, flight-view silhouette, cheep mnemonic + spectrogram, and 3-species look-alike comparison.

1/4

Bird Card2026/05/22 19:07:11

4-card field-ID dossier: Black-capped Chickadee perched portrait, flight-view, fee-bee song mnemonic, and 3-species look-alike comparison.

1/4

Bird Card2026/05/21 19:07:04

4-card field-ID dossier: Blue Jay perched portrait, flight-view, song/call mnemonic, and 3-species look-alike comparison.

1/4

Bird Card2026/05/20 19:29:58

Master the Mourning Dove — field marks, flight, that mournful coo, and 3 look-alikes.

1/4

Bird Card2026/05/19 19:25:13

A 4-card field-ID dossier for the Northern Cardinal — perched-profile gouache portrait of the brilliant all-red male with 6 field-mark callouts, flight-view illustration of dorsal/ventral plumage, song mnemonic with spectrogram ("what-CHEER, what-CHEER, whit-whit-whit"), and a 3-species look-alike comparison card (Pyrrhuloxia / House Finch / Purple Finch).

1/4

Bird Card2026/05/18 21:01:45

A 4-card field-ID dossier for the American Robin — perched-profile gouache portrait with 6 field-mark callouts, flight-view illustration, song mnemonic with spectrogram, and a 3-species look-alike comparison card.

1/4

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