Shop bird control products

Sponsored
About our ads
$187.20
$195.00
Ecobird 4.0 Bird Repellent Liquid - 1 Gallon
Nixalite of America Inc
$187.20
$195.00
Ecobird 4.0 Bird Repellent Liquid - 1 Gallon
Nixalite of America Inc
$25.00
$41.00
Solar-Powered Ultrasonic Bird Repeller For Outdoor Protection
My Game Tables
39% off
$25.00
$41.00
Solar-Powered Ultrasonic Bird Repeller For Outdoor Protection
My Game Tables
$74.95
Avian Migrate Goose & Bird Repellent - 1/2 Gal.
Nixalite of America Inc
$74.95
Avian Migrate Goose & Bird Repellent - 1/2 Gal.
Nixalite of America Inc
$62.92
Bird-X Electronic Pest Repeller: Targets Ants/Bats/Chipmunks/Insects/Raccoons/Rats/Spiders, 110 V AC Model: TX-PRO
Grainger
$62.92
Bird-X Electronic Pest Repeller: Targets Ants/Bats/Chipmunks/Insects/Raccoons/Rats/Spiders, 110 V AC Model: TX-PRO
Grainger
$342.60
Bird-X Electronic Bird Repeller: 1 Acre Coverage Area, Wall Mount, Electric, 110 Db Max Volume Model: BXP-PRO1-220
Grainger
$342.60
Bird-X Electronic Bird Repeller: 1 Acre Coverage Area, Wall Mount, Electric, 110 Db Max Volume Model: BXP-PRO1-220
Grainger
$282.58
Bird-X Electronic Bird Repeller: 1 Acre Coverage Area, Wall Mount, Electric, 110 Db Max Volume Model: BXP-PRO2
Grainger
4
$282.58
Bird-X Electronic Bird Repeller: 1 Acre Coverage Area, Wall Mount, Electric, 110 Db Max Volume Model: BXP-PRO2
Grainger
$128.73
$136.95
Avian Migrate Goose & Bird Repellent - 1 Gal.
Nixalite of America Inc
$128.73
$136.95
Avian Migrate Goose & Bird Repellent - 1 Gal.
Nixalite of America Inc
$1,749.00
Bird-X Heavy Duty Bird Netting, 50' X 100' - NET-PE-50-100
Global Industrial
2
$1,749.00
Bird-X Heavy Duty Bird Netting, 50' X 100' - NET-PE-50-100
Global Industrial
$79.99
Bird B Gone Garden Bird Netting - 14' X 200' Roll - 3/4" Mesh - UV-Stabilized Bird Mesh For Garden Protection, Fruit Trees, Bushes, Plants - Anti Bird
Amazon.com
108
Free shipping
$79.99
Bird B Gone Garden Bird Netting - 14' X 200' Roll - 3/4" Mesh - UV-Stabilized Bird Mesh For Garden Protection, Fruit Trees, Bushes, Plants - Anti Bird
Amazon.com
$80.95
Bird-X Bird Proof Liquid, 1 Gallon Bottle - BP-LIQ-1, G14U
Global Industrial
$80.95
Bird-X Bird Proof Liquid, 1 Gallon Bottle - BP-LIQ-1, G14U
Global Industrial
$12.99
$18.99
Reflective Bird Deterrent Spiral Rods With Wind Rotation And Hanging Cord, 12/24 Pack, 12 Pcs
My Game Tables
31% off
$12.99
$18.99
Reflective Bird Deterrent Spiral Rods With Wind Rotation And Hanging Cord, 12/24 Pack, 12 Pcs
My Game Tables
$34.99
Bird B Gone Bird B-Gone Bird Spikes | By West Marine
WestMarine
$34.99
Bird B Gone Bird B-Gone Bird Spikes | By West Marine
WestMarine
$29.97
PGFIT Ultrasonic Pest Repellent,Solar Animal Repeller,Outdoor Cat Repellent,Bird Repellent,Deer Repellent.Dog,Raccoon,Squirrel Repellent,Motion
Amazon.com
$29.97
PGFIT Ultrasonic Pest Repellent,Solar Animal Repeller,Outdoor Cat Repellent,Bird Repellent,Deer Repellent.Dog,Raccoon,Squirrel Repellent,Motion
Amazon.com
$709.00
Bird-X Ultrason X - Ultrasonic Bird Deterrent Device - USX
Global Industrial
24
$709.00
Bird-X Ultrason X - Ultrasonic Bird Deterrent Device - USX
Global Industrial
$29.99
$41.99
Solar Bird Repeller With PIR Motion Sensor And Sound Deterrent, Weatherproof
My Game Tables
28% off
$29.99
$41.99
Solar Bird Repeller With PIR Motion Sensor And Sound Deterrent, Weatherproof
My Game Tables
$194.75
Avian Control Bird Repellent - Gallon
Wildlife Control Supplies CT
$194.75
Avian Control Bird Repellent - Gallon
Wildlife Control Supplies CT
$39.95
Solar Power Ultrasonic Animal Repellent & Deterrent
Aroflit
$39.95
Solar Power Ultrasonic Animal Repellent & Deterrent
Aroflit
$59.00
Zerobird® - Powerful Professional Ultrasonic Bird Deterrent
Sonic Barrier US
$59.00
Zerobird® - Powerful Professional Ultrasonic Bird Deterrent
Sonic Barrier US
$18.00
Visual Owl Decoy Deterrent For Pigeons And Birds - Silentowl®
Sonic Barrier US
$18.00
Visual Owl Decoy Deterrent For Pigeons And Birds - Silentowl®
Sonic Barrier US
$39.99
Dalen Bird-X Protective Mesh Netting For Fruit Trees, Berries, Vegetables - 14 ft X 75 Ft, Black Garden Netting, 5/8-Inch Mesh - Helps Deter Birds &
Amazon.com
2K+
Free shipping
$39.99
Dalen Bird-X Protective Mesh Netting For Fruit Trees, Berries, Vegetables - 14 ft X 75 Ft, Black Garden Netting, 5/8-Inch Mesh - Helps Deter Birds &
Amazon.com
$74.95
Solar Power Ultrasonic Animal Repellent & Deterrent
Aroflit
$74.95
Solar Power Ultrasonic Animal Repellent & Deterrent
Aroflit
$27.49
Bird B Gone Bird B-Gone Bird Spikes | By West Marine
WestMarine
13
$27.49
Bird B Gone Bird B-Gone Bird Spikes | By West Marine
WestMarine
$10.99
Bird B Gone Bird Repellent Balloon | By West Marine
WestMarine
$10.99
Bird B Gone Bird Repellent Balloon | By West Marine
WestMarine
$59.00
Pigeonchaser® Repeller - Advanced Ultrasonic Pigeon Deterrent
Sonic Barrier US
$59.00
Pigeonchaser® Repeller - Advanced Ultrasonic Pigeon Deterrent
Sonic Barrier US
$39.99
Bird-X Solar Yard Gard Ultrasonic Predator Control
The Pond Guy
$39.99
Bird-X Solar Yard Gard Ultrasonic Predator Control
The Pond Guy
$69.42
Bird-X Bp-Liq-1 Bird Proof Bird Repellent Liquid-1 Gallon
Walmart
1
$69.42
Bird-X Bp-Liq-1 Bird Proof Bird Repellent Liquid-1 Gallon
Walmart
$81.97
$163.94
Reflective Bird Repellent Spinners, Wind Powered Rotation For Pigeons, Woodpeckers, And Outdoor Pest Control | Multicon Wholesale Hub
Inspire Uplift
Free shipping
50% off
$81.97
$163.94
Reflective Bird Repellent Spinners, Wind Powered Rotation For Pigeons, Woodpeckers, And Outdoor Pest Control | Multicon Wholesale Hub
Inspire Uplift
$37.95
Automatic Solar Bird Repeller - Ultrasonic Bird Deterrent - 360° Reflective Scare Device
Yeezlab
$37.95
Automatic Solar Bird Repeller - Ultrasonic Bird Deterrent - 360° Reflective Scare Device
Yeezlab
$8.99
$12.39
150ft Bird Deterrent Reflective Scare Tape Ribbon Holographic Reflective Tape To Scare Birds Away, Double Sided Bird Scare Repellent Flash Tape For Pi
Walmart
27% off
$8.99
$12.39
150ft Bird Deterrent Reflective Scare Tape Ribbon Holographic Reflective Tape To Scare Birds Away, Double Sided Bird Scare Repellent Flash Tape For Pi
Walmart
$20.97
Motion Sensor Bird Repeller With Adjustable Sensitivity And Volume
All Vera Mart
$20.97
Motion Sensor Bird Repeller With Adjustable Sensitivity And Volume
All Vera Mart
$629.00
Bird-X USX Ultrason X 4-Speaker Ultrasonic Bird Repeller Deterrent System With Separate Control Box - 110V
WebstaurantStore
24
$629.00
Bird-X USX Ultrason X 4-Speaker Ultrasonic Bird Repeller Deterrent System With Separate Control Box - 110V
WebstaurantStore
$61.56
Bird Control Netting, Ornex Professional Grade, 14ft Width X 100ft Length By Tenax
A.M. Leonard
$61.56
Bird Control Netting, Ornex Professional Grade, 14ft Width X 100ft Length By Tenax
A.M. Leonard
$14.99
10 ft. Original Plastic Bird Spikes Bird Control Kit
Home Depot
422
Free shipping
$14.99
10 ft. Original Plastic Bird Spikes Bird Control Kit
Home Depot
$63.55
4 The Birds - Bird Repellent Liquid | Gallon (128 Oz)
DoMyOwn.com
Free shipping
$63.55
4 The Birds - Bird Repellent Liquid | Gallon (128 Oz)
DoMyOwn.com
$109.99
Dewitt Bird Barricade Netting (14ft X 200Ft)
Agriculture Solutions LLC
$109.99
Dewitt Bird Barricade Netting (14ft X 200Ft)
Agriculture Solutions LLC
$19.99
Ultrasonic Bird Repeller With Solar Panel And LED Flash, 30ft Coverage
All Vera Mart
$19.99
Ultrasonic Bird Repeller With Solar Panel And LED Flash, 30ft Coverage
All Vera Mart
The Ultimate Laser Bird Deterrents | Bird Control Group
3:11
The Ultimate Laser Bird Deterrents | Bird Control Group
61.8K viewsAug 5, 2021
YouTubeBird Control Group
Bird Control Products - Safe & Effective Solutions | Nixalite
1:41
Bird Control Products - Safe & Effective Solutions | Nixalite
Apr 21, 2016
nixalite.com
Agrilaser Handheld - Laser Bird Repellent in Action
1:45
Agrilaser Handheld - Laser Bird Repellent in Action
42.3K viewsNov 9, 2017
YouTubePrompt Pest Control Equipments
6 Best Ultrasonic Bird Repellents (Electronic): 2026 Review
6 Best Ultrasonic Bird Repellents (Electronic): 2026 Review
4 viewsJun 6, 2020
birdinghub.com
AVIX Autonomic Mark II. Robotic Laser Bird Repellent.
0:38
AVIX Autonomic Mark II. Robotic Laser Bird Repellent.
13.9K viewsNov 29, 2019
YouTubeBird Control Group
10 Best Bird Repellents Reviewed and Rated in 2025
10 Best Bird Repellents Reviewed and Rated in 2025
1 viewsJan 2, 2025
birdingdepot.com
How Bird Laser Deterrents Work | AVIX Autonomic Laser Bird Control Explained
3:00
How Bird Laser Deterrents Work | AVIX Autonomic Laser Bird Control Explained
4.3K viewsDec 23, 2021
YouTubePestFix
What Is the Best Bird Deterrent? Complete Buyer’s Guide For 2026
Jan 17, 2024
birdcontrolgroup.com
1:27
Defender™ Bird and Pigeon Spikes - How to install Bird Control Spikes
18.7K viewsMar 9, 2015
YouTubeDefender Bird Spikes
Ultrasonic Bird Repeller | Ultrason-X 4-speaker System | Bird-X
7 months ago
bird-x.com
0:23
Stainless Steel Bird Spikes [Effectively Stops Pigeons, Seagulls & More!]
115.1K viewsApr 28, 2021
YouTubeBird B Gone Bird Control Products
Yard Gard | Ultrasonic Pest Control for Outdoors | Bird-X
4 months ago
bird-x.com
BirdXPeller® PRO | Sonic Bird Control | Scare Birds | Bird-X
7 months ago
bird-x.com
10 Best Bird Repellents: Sprays, Tapes, Gels (& More Types)
Jun 6, 2020
birdinghub.com
Transonic PRO | Bird-X Sonic/Ultrasonic Indoor Pest Control
7 months ago
bird-x.com
1:39
Agrilaser® Autonomic - automatic laser bird deterrent
461.5K viewsDec 16, 2014
YouTubeBird Control Group
9:38
Pigeon deterrent SCAM - Stop Bird Pro - review - repellent - control - how not to get rid of pigeons
57.8K viewsAug 27, 2021
YouTubeThe Aiden Project🔨
1:14
Bird-X Outdoor Laser I | Humane & Powerful Outdoor Bird Control
1.5K views8 months ago
YouTubeBird-X
1:57
Introduction to Bird Netting (Bird B Gone Bird Control Netting)
40.3K viewsAug 26, 2016
YouTubeBird B Gone Bird Control Products
10:12
How to Apply Bird Repellent to Your Roof | Hotfoot.com
34.3K viewsMay 31, 2016
YouTubeHotfoot.com
19:13
How To Get Rid Of Seagulls | Bird B Gone | Ask An Expert
6.4K viewsSep 22, 2020
YouTubeBird B Gone Bird Control Products
2:43
Getting Started with Bird Netting | Bird B Gone
47.4K viewsJun 14, 2011
YouTubeBird B Gone Bird Control Products
5:41
U.S. Bird Netting & Bird Spike Installers [Demo & 2020 Prices]
1.4K viewsOct 20, 2020
YouTubeThe Cottom's Wildlife Removal Company in Ohio
Bird Stop ® Liquid | Bird-X
Jul 21, 2017
bird-x.com
5:59
How to Install Heavy Duty Bird Netting [A Step-by-Step Tutorial] Professional Bird Net Installation
547.4K viewsAug 26, 2016
YouTubeBird B Gone Bird Control Products
2:41
Best Seagull Deterrents [Pro Tips] How to Keep Gulls Away
33.6K viewsOct 3, 2017
YouTubeBird B Gone Bird Control Products
4:07
How Professionals Protect Structures: PE Netting, AviAngle, Bird Wire, AviShock & Spike Solutions
207 views6 months ago
YouTubeBird-X
2:24
How to Install the Bird-Out Aromatic Bird Repellent Kit in Outdoor Areas | Bird B Gone
14.5K viewsOct 14, 2021
YouTubeBird B Gone Bird Control Products
3:06
Installing Bird Netting: Essential Hardware & Tools
4.8K viewsDec 18, 2023
YouTubeBird-X
See more

Shop bird control products

Sponsored
About our ads
$34.99
Bird B Gone Bird B-Gone Bird Spikes | By West Marine
WestMarine
$34.99
Bird B Gone Bird B-Gone Bird Spikes | By West Marine
WestMarine
$29.97
PGFIT Ultrasonic Pest Repellent,Solar Animal Repeller,Outdoor Cat Repellent,Bird Repellent,Deer Repellent.Dog,Raccoon,Squirrel Repellent,Motion
Amazon.com
$29.97
PGFIT Ultrasonic Pest Repellent,Solar Animal Repeller,Outdoor Cat Repellent,Bird Repellent,Deer Repellent.Dog,Raccoon,Squirrel Repellent,Motion
Amazon.com
$709.00
Bird-X Ultrason X - Ultrasonic Bird Deterrent Device - USX
Global Industrial
24
$709.00
Bird-X Ultrason X - Ultrasonic Bird Deterrent Device - USX
Global Industrial
$29.99
$41.99
Solar Bird Repeller With PIR Motion Sensor And Sound Deterrent, Weatherproof
My Game Tables
28% off
$29.99
$41.99
Solar Bird Repeller With PIR Motion Sensor And Sound Deterrent, Weatherproof
My Game Tables
$194.75
Avian Control Bird Repellent - Gallon
Wildlife Control Supplies CT
$194.75
Avian Control Bird Repellent - Gallon
Wildlife Control Supplies CT
$39.95
Solar Power Ultrasonic Animal Repellent & Deterrent
Aroflit
$39.95
Solar Power Ultrasonic Animal Repellent & Deterrent
Aroflit
$59.00
Zerobird® - Powerful Professional Ultrasonic Bird Deterrent
Sonic Barrier US
$59.00
Zerobird® - Powerful Professional Ultrasonic Bird Deterrent
Sonic Barrier US
$18.00
Visual Owl Decoy Deterrent For Pigeons And Birds - Silentowl®
Sonic Barrier US
$18.00
Visual Owl Decoy Deterrent For Pigeons And Birds - Silentowl®
Sonic Barrier US
$39.99
Dalen Bird-X Protective Mesh Netting For Fruit Trees, Berries, Vegetables - 14 ft X 75 Ft, Black Garden Netting, 5/8-Inch Mesh - Helps Deter Birds &
Amazon.com
2K+
Free shipping
$39.99
Dalen Bird-X Protective Mesh Netting For Fruit Trees, Berries, Vegetables - 14 ft X 75 Ft, Black Garden Netting, 5/8-Inch Mesh - Helps Deter Birds &
Amazon.com
$74.95
Solar Power Ultrasonic Animal Repellent & Deterrent
Aroflit
$74.95
Solar Power Ultrasonic Animal Repellent & Deterrent
Aroflit
$27.49
Bird B Gone Bird B-Gone Bird Spikes | By West Marine
WestMarine
13
$27.49
Bird B Gone Bird B-Gone Bird Spikes | By West Marine
WestMarine
$10.99
Bird B Gone Bird Repellent Balloon | By West Marine
WestMarine
$10.99
Bird B Gone Bird Repellent Balloon | By West Marine
WestMarine
$59.00
Pigeonchaser® Repeller - Advanced Ultrasonic Pigeon Deterrent
Sonic Barrier US
$59.00
Pigeonchaser® Repeller - Advanced Ultrasonic Pigeon Deterrent
Sonic Barrier US
$39.99
Bird-X Solar Yard Gard Ultrasonic Predator Control
The Pond Guy
$39.99
Bird-X Solar Yard Gard Ultrasonic Predator Control
The Pond Guy
$69.42
Bird-X Bp-Liq-1 Bird Proof Bird Repellent Liquid-1 Gallon
Walmart
1
$69.42
Bird-X Bp-Liq-1 Bird Proof Bird Repellent Liquid-1 Gallon
Walmart
$81.97
$163.94
Reflective Bird Repellent Spinners, Wind Powered Rotation For Pigeons, Woodpeckers, And Outdoor Pest Control | Multicon Wholesale Hub
Inspire Uplift
Free shipping
50% off
$81.97
$163.94
Reflective Bird Repellent Spinners, Wind Powered Rotation For Pigeons, Woodpeckers, And Outdoor Pest Control | Multicon Wholesale Hub
Inspire Uplift
$37.95
Automatic Solar Bird Repeller - Ultrasonic Bird Deterrent - 360° Reflective Scare Device
Yeezlab
$37.95
Automatic Solar Bird Repeller - Ultrasonic Bird Deterrent - 360° Reflective Scare Device
Yeezlab
$8.99
$12.39
150ft Bird Deterrent Reflective Scare Tape Ribbon Holographic Reflective Tape To Scare Birds Away, Double Sided Bird Scare Repellent Flash Tape For Pi
Walmart
27% off
$8.99
$12.39
150ft Bird Deterrent Reflective Scare Tape Ribbon Holographic Reflective Tape To Scare Birds Away, Double Sided Bird Scare Repellent Flash Tape For Pi
Walmart

Shop bird control products

Sponsored
About our ads
$187.20
$195.00
Ecobird 4.0 Bird Repellent Liquid - 1 Gallon
Nixalite of America Inc
$187.20
$195.00
Ecobird 4.0 Bird Repellent Liquid - 1 Gallon
Nixalite of America Inc
$25.00
$41.00
Solar-Powered Ultrasonic Bird Repeller For Outdoor Protection
My Game Tables
39% off
$25.00
$41.00
Solar-Powered Ultrasonic Bird Repeller For Outdoor Protection
My Game Tables
$74.95
Avian Migrate Goose & Bird Repellent - 1/2 Gal.
Nixalite of America Inc
$74.95
Avian Migrate Goose & Bird Repellent - 1/2 Gal.
Nixalite of America Inc
$62.92
Bird-X Electronic Pest Repeller: Targets Ants/Bats/Chipmunks/Insects/Raccoons/Rats/Spiders, 110 V AC Model: TX-PRO
Grainger
$62.92
Bird-X Electronic Pest Repeller: Targets Ants/Bats/Chipmunks/Insects/Raccoons/Rats/Spiders, 110 V AC Model: TX-PRO
Grainger
$342.60
Bird-X Electronic Bird Repeller: 1 Acre Coverage Area, Wall Mount, Electric, 110 Db Max Volume Model: BXP-PRO1-220
Grainger
$342.60
Bird-X Electronic Bird Repeller: 1 Acre Coverage Area, Wall Mount, Electric, 110 Db Max Volume Model: BXP-PRO1-220
Grainger
$282.58
Bird-X Electronic Bird Repeller: 1 Acre Coverage Area, Wall Mount, Electric, 110 Db Max Volume Model: BXP-PRO2
Grainger
4
$282.58
Bird-X Electronic Bird Repeller: 1 Acre Coverage Area, Wall Mount, Electric, 110 Db Max Volume Model: BXP-PRO2
Grainger
$128.73
$136.95
Avian Migrate Goose & Bird Repellent - 1 Gal.
Nixalite of America Inc
$128.73
$136.95
Avian Migrate Goose & Bird Repellent - 1 Gal.
Nixalite of America Inc
$1,749.00
Bird-X Heavy Duty Bird Netting, 50' X 100' - NET-PE-50-100
Global Industrial
2
$1,749.00
Bird-X Heavy Duty Bird Netting, 50' X 100' - NET-PE-50-100
Global Industrial
$79.99
Bird B Gone Garden Bird Netting - 14' X 200' Roll - 3/4" Mesh - UV-Stabilized Bird Mesh For Garden Protection, Fruit Trees, Bushes, Plants - Anti Bird
Amazon.com
108
Free shipping
$79.99
Bird B Gone Garden Bird Netting - 14' X 200' Roll - 3/4" Mesh - UV-Stabilized Bird Mesh For Garden Protection, Fruit Trees, Bushes, Plants - Anti Bird
Amazon.com
$80.95
Bird-X Bird Proof Liquid, 1 Gallon Bottle - BP-LIQ-1, G14U
Global Industrial
$80.95
Bird-X Bird Proof Liquid, 1 Gallon Bottle - BP-LIQ-1, G14U
Global Industrial
$12.99
$18.99
Reflective Bird Deterrent Spiral Rods With Wind Rotation And Hanging Cord, 12/24 Pack, 12 Pcs
My Game Tables
31% off
$12.99
$18.99
Reflective Bird Deterrent Spiral Rods With Wind Rotation And Hanging Cord, 12/24 Pack, 12 Pcs
My Game Tables
$34.99
Bird B Gone Bird B-Gone Bird Spikes | By West Marine
WestMarine
$34.99
Bird B Gone Bird B-Gone Bird Spikes | By West Marine
WestMarine
$29.97
PGFIT Ultrasonic Pest Repellent,Solar Animal Repeller,Outdoor Cat Repellent,Bird Repellent,Deer Repellent.Dog,Raccoon,Squirrel Repellent,Motion
Amazon.com
$29.97
PGFIT Ultrasonic Pest Repellent,Solar Animal Repeller,Outdoor Cat Repellent,Bird Repellent,Deer Repellent.Dog,Raccoon,Squirrel Repellent,Motion
Amazon.com
$709.00
Bird-X Ultrason X - Ultrasonic Bird Deterrent Device - USX
Global Industrial
24
$709.00
Bird-X Ultrason X - Ultrasonic Bird Deterrent Device - USX
Global Industrial
$29.99
$41.99
Solar Bird Repeller With PIR Motion Sensor And Sound Deterrent, Weatherproof
My Game Tables
28% off
$29.99
$41.99
Solar Bird Repeller With PIR Motion Sensor And Sound Deterrent, Weatherproof
My Game Tables
$194.75
Avian Control Bird Repellent - Gallon
Wildlife Control Supplies CT
$194.75
Avian Control Bird Repellent - Gallon
Wildlife Control Supplies CT
$39.95
Solar Power Ultrasonic Animal Repellent & Deterrent
Aroflit
$39.95
Solar Power Ultrasonic Animal Repellent & Deterrent
Aroflit
$59.00
Zerobird® - Powerful Professional Ultrasonic Bird Deterrent
Sonic Barrier US
$59.00
Zerobird® - Powerful Professional Ultrasonic Bird Deterrent
Sonic Barrier US