The Timeless Apparel for Life Outside

Products

Any two tees ship free

Fewer than 1% ask for a refund

Products

Birdline tees built for early starts, long looks and the ride home.
761 products
Lake Mode Long Sleeve Shirt in Light Blue, front viewLake Mode Long Sleeve Shirt, alternate view
Lake Mode Long Sleeve Shirt

From $32.95

Lake Mode T-Shirt in Natural, front viewLake Mode T-Shirt, alternate view
Lake Mode T-Shirt

From $29.95

Lantern and Fireflies T-Shirt in Pepper, front viewLantern and Fireflies T-Shirt, alternate view
Lantern and Fireflies T-Shirt

From $39.95

Last One Awake Badger T-Shirt in Sandstone, front viewLast One Awake Badger T-Shirt, alternate view
Last One Awake Badger T-Shirt

From $39.95

Last One Awake Raccoon Headlamp T-Shirt in Blue Spruce, front viewLast One Awake Raccoon Headlamp T-Shirt, alternate view
Last One Awake Raccoon Headlamp T-Shirt

From $39.95

Late Saw a Warbler T-Shirt in True Navy, front viewLate Saw a Warbler T-Shirt, alternate view
Late Saw a Warbler T-Shirt

From $39.95

Field note

Patience finds the rare ones.

Birdline Outfitters

Launch Before Daylight Cranes T-Shirt in Midnight, front viewLaunch Before Daylight Cranes T-Shirt, alternate view
Launch Before Daylight Cranes T-Shirt

From $39.95

Leaf Peeping Professional T-Shirt in Emerald, front viewLeaf Peeping Professional T-Shirt, alternate view
Leaf Peeping Professional T-Shirt

From $39.95

Leave a Message I'm Outside T-Shirt in Pepper, front viewLeave a Message I'm Outside T-Shirt, alternate view
Leave a Message I'm Outside T-Shirt

From $39.95

Leave Me A Loon T-Shirt in Crimson, front viewLeave Me A Loon T-Shirt, alternate view
Leave Me A Loon T-Shirt

From $39.95

Leave Me Beak T-Shirt in Blue Jean, front viewLeave Me Beak T-Shirt, alternate view
Leave Me Beak T-Shirt

From $39.95

Life List Before To-Do List T-Shirt in Bay, front viewLife List Before To-Do List T-Shirt, alternate view
Life List Before To-Do List T-Shirt

From $39.95

Life List in Progress T-Shirt in Grape, front viewLife List in Progress T-Shirt, alternate view
Life List in Progress T-Shirt

From $39.95

Lifer Loading T-Shirt in Denim, front viewLifer Loading T-Shirt, alternate view
Lifer Loading T-Shirt

From $39.95

Livin On Bird Time Long Sleeve Shirt in Sand, front viewLivin On Bird Time Long Sleeve Shirt, alternate view
Livin On Bird Time Long Sleeve Shirt

From $32.95

Livin On Bird Time T-Shirt in Dark Heather, front viewLivin On Bird Time T-Shirt, alternate view
Livin On Bird Time T-Shirt

From $29.95

Local Knowledge T-Shirt in Black, front viewLocal Knowledge T-Shirt, alternate view
Local Knowledge T-Shirt

From $39.95

Local Patch Regular Sparrow T-Shirt in Blue Spruce, front viewLocal Patch Regular Sparrow T-Shirt, alternate view
Local Patch Regular Sparrow T-Shirt

From $39.95

Long Time No Sea Long Sleeve Shirt in Ash, front viewLong Time No Sea Long Sleeve Shirt, alternate view
Long Time No Sea Long Sleeve Shirt

From $32.95

Long Time No Sea T-Shirt in Light Blue, front viewLong Time No Sea T-Shirt, alternate view
Long Time No Sea T-Shirt

From $29.95

Look Up Micro Pattern T-shirt in White, front viewLook Up Micro Pattern T-shirt, alternate view
Look Up Micro Pattern T-shirt

From $39.95

Look Up Owl T-Shirt in Black, front viewLook Up Owl T-Shirt, alternate view
Look Up Owl T-Shirt

From $39.95

Look Up T-shirt in Brick, front viewLook Up T-shirt, alternate view
Look Up T-shirt

From $39.95

Loon in Flight T-shirt in Midnight, front viewLoon in Flight T-shirt, alternate view
Loon in Flight T-shirt

From $39.95

Loon Lake Long Sleeve Shirt in Ash, front viewLoon Lake Long Sleeve Shirt, alternate view
Loon Lake Long Sleeve Shirt

From $32.95

Loon Song T-Shirt in True Navy, front viewLoon Song T-Shirt, alternate view
Loon Song T-Shirt

From $39.95

Low Tide Club Pelican T-Shirt in Ivory, front viewLow Tide Club Pelican T-Shirt, alternate view
Low Tide Club Pelican T-Shirt

From $39.95

Low Tide Good Vibes Octopus T-Shirt in Graphite, front viewLow Tide Good Vibes Octopus T-Shirt, alternate view
Low Tide Good Vibes Octopus T-Shirt

From $39.95

Low Tide Good Vibes Pelican T-Shirt in Seafoam, front viewLow Tide Good Vibes Pelican T-Shirt, alternate view
Low Tide Good Vibes Pelican T-Shirt

From $39.95

Loyal to the Loon T-shirt in Ice Blue, front viewLoyal to the Loon T-shirt, alternate view
Loyal to the Loon T-shirt

From $39.95

Lynx in the Rocks T-Shirt in Ivory, front viewLynx in the Rocks T-Shirt, alternate view
Lynx in the Rocks T-Shirt

From $39.95

Maine North of Necessary Moose T-Shirt in Blue Jean, front viewMaine North of Necessary Moose T-Shirt, alternate view
Maine North of Necessary Moose T-Shirt

From $39.95

Make Some Noise Woodpecker T-Shirt in Sandstone, front viewMake Some Noise Woodpecker T-Shirt, alternate view
Make Some Noise Woodpecker T-Shirt

From $39.95

Making Good Time T-Shirt in Grey, front viewMaking Good Time T-Shirt, alternate view
Making Good Time T-Shirt

From $39.95

Married into Camping T-Shirt in Black, front viewMarried into Camping T-Shirt, alternate view
Married into Camping T-Shirt

From $39.95

Marsh Heron T-Shirt in Moss, front viewMarsh Heron T-Shirt, alternate view
Marsh Heron T-Shirt

From $39.95

Marsh Madness T-Shirt in Crimson, front viewMarsh Madness T-Shirt, alternate view
Marsh Madness T-Shirt

From $39.95

Meet Me at the Water Heron T-Shirt in Washed Denim, front viewMeet Me at the Water Heron T-Shirt, alternate view
Meet Me at the Water Heron T-Shirt

From $39.95

Meet Me Where the Map Ends Heron T-Shirt in Khaki, front viewMeet Me Where the Map Ends Heron T-Shirt, alternate view
Meet Me Where the Map Ends Heron T-Shirt

From $39.95

Meet Me Where the Pelicans Are T-Shirt in Washed Denim, front viewMeet Me Where the Pelicans Are T-Shirt, alternate view
Meet Me Where the Pelicans Are T-Shirt

From $39.95

Migration Club T-shirt in Pepper, front viewMigration Club T-shirt, alternate view
Migration Club T-shirt

From $39.95

Migration Has Right of Way T-Shirt in Blue Spruce, front viewMigration Has Right of Way T-Shirt, alternate view
Migration Has Right of Way T-Shirt

From $39.95

About Birdline tees at Birdline Outfitters

What a Birdline tee is made of

Most Birdline tees are printed on heavyweight garment-dyed cotton in a relaxed unisex fit. The fabric, fit and care for each design are listed on its product page.

Choosing a tee for the field

Birds notice movement and contrast long before they notice you. Muted earth tones — olive, sand, stone, bark — blend into cover; skip white, which reads as a flash of movement from across a field. Matte garment-dyed cotton doesn't catch the light the way technical fabrics can. Start the morning in a heavyweight tee and carry a light mid-layer for when the sun clears the treeline.

Sizing and fit

Birdline tees are a relaxed unisex fit with room to move. Every product page has a Find Your Fit guide with chest and length measurements for each size, so you can check before you order.

Our promise: no ruffled feathers

30-day guarantee. No ruffled feathers — every Birdline tee is backed by it.

Any two tees ship free. Free U.S. shipping on any two tees.

Field Set pricing. Put three or more tees in your cart and each drops to its Field Set price: Signature from $34, Everyday from $24.

Fewer than 1% refunds. Across all Birdline sales, fewer than 1% of customers have asked for one — the tees arrive as pictured and fit as described.

Order the right size the first time. Every product page has a Find Your Fit guide with chest and length measurements for each size, so check it before you order.

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Size Guide

Designed for comfort in the field and everywhere in between.

Find Your Fit

Height
Weight
Body Build
Preferred Fit

This is a starting-size estimate. Verify chest width in the Size Chart before choosing.

Between sizes? For a relaxed look, size up.
For a more fitted look, size down.

Size Chart

Size Chest width
(in)
Body length
(in)
Sleeve length
(in)
S18.2526.616.25
M20.252817.75
L2229.419
XL2430.7520.5
2XL2631.621.75
3XL27.7532.523.25
4XL29.7533.524.625

Garment measurements, taken with the tee lying flat. Compare them with a tee that fits you well.

Our Fit

Tee diagram showing chest and length measurement points
  • Relaxed, unisex fit
    Designed to move with you on every adventure.
  • Garment-dyed cotton
    Pre-shrunk for a soft feel that lasts.
  • Made for birders, worn everywhere
    Comfortable in the field, at camp and beyond.
“The joy of birding isn’t just in the birds we see, but in the life we notice because of them.”