THE JOURNAL / Free Bird Identifier

A little deeper.
A little more curious.

Helpful guides, thoughtful observations, and the details worth a second look. Find your next discovery.

Showing 109–126 of 150 guides

THE READING ROOM / 07
Sex, age, seasonal plumage and photo clues5 MIN READ

Mallard Eclipse Plumage: How to Identify Males in Summer

Learn how eclipse plumage changes a male Mallard’s appearance, how to distinguish him from a female, and which photo clues remain useful.

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Woodland, water and larger bird guides5 MIN READ

Mallard Identification: Field Marks, Sex, Age, and Seasonal Variation

Learn to identify mallards by plumage, bill, wing patches, body shape, and the differences between males, females, juveniles, and hybrids.

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Common bird comparisons5 MIN READ

Mallard vs. American Black Duck: How to Tell Them Apart

Compare the Mallard and American Black Duck using plumage, bill color, geography, age, sex, and seasonal variation.

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Backyard species field guides5 MIN READ

Mourning Dove Identification: Key Field Marks and Similar Species

Learn to identify mourning doves by their shape, plumage, distinctive wing and tail patterns, and differences from lookalike doves.

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Common bird comparisons5 MIN READ

Mourning Dove vs. Eurasian Collared-Dove: How to Tell Them Apart

Compare the Mourning Dove and Eurasian Collared-Dove by size, shape, plumage, tail, range, age, and sex to identify them in photos.

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Backyard species field guides6 MIN READ

Northern Cardinal Identification: Visual Field Marks, Age, and Sex

Learn how to identify northern cardinals by plumage, crest, bill, and tail, with clues for distinguishing males, females, juveniles, and regional variation.

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Woodland, water and larger bird guides5 MIN READ

Northern Flicker Identification: Key Field Marks and Variations

Learn to identify a northern flicker by its plumage, markings, size, and the regional, age, and sex differences visible in photos.

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Backyard species field guides5 MIN READ

Northern Mockingbird Identification: Key Field Marks and Look-Alikes

Learn how to identify a Northern Mockingbird by its gray plumage, white wing patches, long tail, and differences from similar birds.

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Woodland, water and larger bird guides6 MIN READ

Osprey Identification: Key Field Marks, Age, and Range

Identify ospreys by their dark eye stripe, white underparts, hooked bill, and distinctive shape, while accounting for age, geography, and viewing conditions.

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Woodland, water and larger bird guides6 MIN READ

Pileated Woodpecker Identification: Key Field Marks and Look-Alikes

Learn to identify a pileated woodpecker by its size, crest, facial stripes, range, and differences from similar woodpeckers.

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Backyard species field guides5 MIN READ

Purple Finch Identification: Field Marks, Sex, Age, and Range

Learn how to identify Purple Finches by plumage, compare them with House Finches, and account for differences in sex, age, season, and geography.

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Birds by color, shape and setting5 MIN READ

Red Birds That Are Not Cardinals: 12 Species to Know

Learn to identify red birds beyond cardinals by comparing plumage, shape, habitat, range, and seasonal differences.

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Woodland, water and larger bird guides5 MIN READ

Red-bellied Woodpecker Identification: Key Field Marks, Sex, Age, and Range

Learn to identify Red-bellied Woodpeckers by their barred backs, red crowns, pale faces, and the differences between males and females.

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Common bird comparisons5 MIN READ

Red-Bellied Woodpecker vs. Red-Headed Woodpecker: How to Tell Them Apart

Compare the red-bellied and red-headed woodpecker by head color, back pattern, range, age, and other useful photo-identification clues.

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Backyard species field guides5 MIN READ

Red-Breasted Nuthatch Identification: Field Marks, Sex, Age, and Range

Learn to identify a red-breasted nuthatch by its facial pattern, rusty underside, shape, and the details that vary with sex, age, and location.

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Woodland, water and larger bird guides5 MIN READ

Red-Tailed Hawk Identification: Field Marks, Age, and Range

Learn to identify red-tailed hawks by their plumage, shape, flight, geography, and age, while separating them from similar North American hawks.

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Common bird comparisons5 MIN READ

Red-Tailed Hawk vs. Red-Shouldered Hawk: How to Tell Them Apart

Compare red-tailed and red-shouldered hawks by plumage, shape, habitat, age, and geography to identify them more confidently in photos.

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Backyard species field guides5 MIN READ

Red-Winged Blackbird Identification: Field Marks by Sex, Age, and Season

Identify red-winged blackbirds by their shoulder patches, plumage, size, and seasonal variation, and distinguish them from similar dark birds.

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