Problem Solving
Deer Eating Bird Seed
A deer can reach seed at about 6 feet (1.8 m) without trying and higher on its hind legs. Most feeders are hung well inside that range.
The short answer
- Deer browse to about 6 feet (1.8 m) flat footed and can reach roughly 7 to 8 feet (2.1 to 2.4 m) on their hind legs, so hang feeders at 8 feet (2.4 m) or more.
- The cheapest complete fix is to bring feeders in at dusk and sweep the spill, since deer feed mainly at dawn and dusk.
- Corn and cheap mixes are what pull deer in. Safflower, nyjer and straight sunflower hearts are far less attractive to them.
- Deer damage is not just to your seed: browsing removes the shrub layer that birds nest and shelter in.
- Many states prohibit feeding deer, often to limit chronic wasting disease transmission. A feeder that a deer is using may count. Check your state wildlife agency.
A white-tailed deer browses comfortably to about 6 feet (1.8 m) and, standing on its hind legs, can reach seed at roughly 7 to 8 feet (2.1 to 2.4 m). Most bird feeders hang at 5 to 6 feet (1.5 to 1.8 m). That single mismatch explains almost every case of a feeder found empty and swinging at dawn.
Deer are also large enough to tip, bend or pull down a feeder to get at what they cannot reach, and they clean the ground beneath it thoroughly. They usually feed at dusk and dawn, which is why so many people never see the culprit.
This page covers how to tell a deer raid from the alternatives, the height and exclusion numbers that actually work, which seeds pull deer in and which do not, the nightly routine that ends the problem outright, and why deer feeding is a legal matter in a growing number of states.
Confirming it is deer#
| Evidence | Reading |
|---|---|
| Feeder emptied at dusk or overnight, hardware bent | Deer |
| Ground completely cleaned below the feeder | Deer |
| Two-toed heart-shaped tracks, 2 to 3 in (5 to 8 cm) | Deer |
| Browse line on shrubs at about 5 to 6 ft (1.5 to 1.8 m) | Deer |
| Ragged torn twig ends rather than clean cuts | Deer, which lack upper incisors |
| Pellet droppings in scattered piles | Deer |
| Lid opened, feeder unhooked and undamaged | Raccoon, see keeping raccoons off feeders |
| Pole snapped, feeder crushed and carried off | Bear, see bird feeders and bears |
The ragged twig ends are the most useful field mark. Deer have no upper incisors, so they tear browse rather than clipping it the way a rabbit does.
Height and placement#
Height is the primary defense, and the numbers are unforgiving.
- 8 feet (2.4 m) minimum to the base of the feeder. Higher if you have space, since a deer under pressure will stretch further than the textbook figure.
- Hang from an arm or crossbar, not flat against a pole, so the deer cannot reach in past it or use the pole to steady itself.
- Keep it away from slopes, decks, retaining walls and stumps. A deer standing 2 feet (60 cm) uphill has erased your clearance.
- Account for snow. A 30 inch (75 cm) snowpack turns an 8 foot feeder into a 5.5 foot feeder. In northern yards this is the most common winter failure.
- Use a pulley or a long hook so you can still fill it. A feeder you cannot reach comfortably is a feeder that runs empty.
An 8 foot hang works against deer but conflicts with the squirrel geometry, which wants clearance below an overhead branch. The way to satisfy both is a tall pole in open ground with a baffle, described in how high a bird feeder should be and where to hang a bird feeder.
The nightly clean-down
Deer feed most heavily at dusk and dawn. Bringing feeders in at sunset, sweeping the spilled seed, and rehanging at first light removes their entire window. It costs nothing, takes two minutes, and simultaneously solves raccoons and most of the rodent pressure. If you do one thing on this page, do this.
Ranked fixes#
| Fix | Rough cost | Effectiveness | Notes |
|---|---|---|---|
| Bring feeders in at dusk, sweep spill | Free | Very high | Removes the entire feeding window |
| Raise feeders to 8 ft (2.4 m) or more | Low | High | Watch for snowpack and slopes |
| Stop using corn and corn-based mixes | Free or saves money | High | Corn is the main deer draw |
| Switch to safflower, nyjer or sunflower hearts | Low to moderate | Moderate to high | Less attractive to deer, good for birds |
| Catch tray to stop ground spill | Low | Moderate | Deer clean up the ground first |
| Small fenced enclosure around the station | Moderate | High | Needs about 8 ft (2.4 m) of height |
| Motion-activated sprinkler | Moderate | Moderate, fades | Deer habituate; move it periodically |
| Move the station away from deer trails | Free | Moderate | Watch where they enter the yard |
| Scent or taste repellents on seed | Low | Never do this | Not safe or appropriate on bird food |
| Feeding deer separately | Moderate | Counterproductive and often illegal | Raises local density |
Seed choice#
What is in the feeder decides how hard the deer works to reach it.
Strong deer attractants: cracked corn, whole corn, and any mix built on corn, milo, wheat or oats. These are also the ingredients most feeder birds discard, so removing them costs you nothing in bird activity. See bird seed mixes: reading the label and cracked corn for what corn is and is not good for.
Moderate: black oil sunflower in the shell, peanuts, suet. Deer will take all of these when they are easy to reach.
Least attractive: safflower seed, which is bitter and unappealing to many mammals, and nyjer, which is too small to be worth a deer's effort. Both are excellent bird foods, so this is a change with no downside beyond price. Sunflower hearts fall in between: attractive but they generate almost no ground spill, which removes half the reason a deer stops.
Change the ground, not just the feeder
Deer usually work the ground under a feeder before they attempt the feeder itself. A catch tray plus hull-free seed removes that first course, and often the deer stops bothering. The same change is the main fix for chipmunks and rodents, and it is covered fully in seed mess, hulls and dead grass.
Exclusion that actually works#
Full deer fencing runs about 8 feet (2.4 m) tall, which is impractical and often not permitted in a residential yard. Two smaller-scale approaches work better.
A feeding enclosure. Fence a small area around the feeder station rather than the property. At close quarters deer are reluctant to jump into a space they cannot see a clear exit from, so a compact enclosure can succeed at a lower height than an open-field fence would need. It also gives you somewhere to keep a ground tray and bird bath.
Placement out of the traffic pattern. Deer follow habitual routes. Watch where they enter and leave the yard over a week and move the station well away from that line, ideally close to the house and into an area with human activity. This does not exclude deer, but it raises the effort enough that many will not bother.
Motion-activated sprinklers give a few weeks of good results and then diminishing ones as animals learn the pattern. Moving the sprinkler every couple of weeks extends the effect. Nothing about ultrasonic devices, reflective tape or hanging soap holds up as a durable answer at a feeder.
The legal and disease picture#
Deer feeding is regulated far more tightly than most feeder owners realize, largely because of chronic wasting disease. Concentrating deer at a food source increases nose-to-nose contact and contact with contaminated ground, which is the transmission pathway wildlife agencies are trying to break.
Rules vary widely. Some states ban deer feeding outright, some restrict it seasonally or by county, and some exempt bird feeders only when they are placed so deer cannot reach them. A feeder that deer are visibly using can, in some jurisdictions, be treated as deer feeding. Look up your state or provincial wildlife agency for the current rule where you live, since these change from year to year.
Do not put repellents on bird food
Deer repellents are formulated for ornamental plants, and some contain egg solids, capsaicin, blood meal or fungicidal ingredients. None of them belong on or near seed that birds will eat, and applying anything to bird food is a welfare risk you cannot assess. Protect shrubs with repellents if you like; keep them away from the feeding station.
Deer, shrubs and the birds you are trying to attract#
There is a second cost to a yard that feeds deer. Heavy browsing strips the shrub layer, and that layer is where a great many songbirds nest, forage and shelter. In areas with high deer density, understory loss is associated with declines in the birds that depend on it.
If deer are working your yard nightly, the shrubs you plant for birds are unlikely to establish. Protect new plantings with cages for their first few years and lean on species deer browse less heavily. Selection advice is in native plants for birds, and the value of the layer you are protecting is explained in brush piles and cover.
A setup deer will give up on#
- Feeders at 8 feet (2.4 m) or more, on an arm, in open ground clear of slopes and structures.
- No corn, no corn-based mixes. Safflower, nyjer or sunflower hearts instead.
- Catch tray under the feeder and a swept ground zone.
- Feeders in at dusk, back out at first light.
- Station sited away from deer trails, near household activity.
- Snow allowance: re-hang higher, or raise the pole, once snow accumulates.
Expect deer to keep checking for one to two weeks after the food stops appearing. Consistency is what ends it; one night of leaving the feeder out resets the clock.
Frequently asked questions#
How high should a bird feeder be to keep deer out?
Hang the feeder so its base is at least 8 feet (2.4 m) off the ground, ideally on an arm that keeps it away from the pole. Deer browse comfortably to about 6 feet (1.8 m) and can stretch to roughly 7 to 8 feet (2.1 to 2.4 m) standing on their hind legs. Remember that deep snow effectively lowers your feeder.
What bird seed do deer not like?
Deer are least interested in safflower, nyjer and pure sunflower hearts, and most attracted to cracked corn and mixes containing corn, milo, wheat and oats. Switching away from corn-based mixes is the single most effective seed change, and it improves the birds you attract at the same time.
Is it illegal to feed deer?
In many states and provinces, yes, and the rules have tightened as chronic wasting disease has spread. Some prohibit deer feeding outright, some ban it seasonally, and some make an exception for bird feeders only if deer cannot access them. Because the details vary a great deal, check your state or provincial wildlife agency before assuming your setup is fine.
Will fencing keep deer away from feeders?
A fence has to be about 8 feet (2.4 m) tall to reliably exclude white-tailed deer, which is more than most yards want or local rules allow. A smaller enclosure around the feeding station, or a fenced garden area with the feeder inside it, is often more practical than fencing a whole yard.
Do deer repellents work on bird feeders?
Scent and taste repellents are made for plants and are not appropriate on or near bird food. Never apply repellent to seed or to a feeder. Repellents on surrounding shrubs may protect the plants, but they will not keep a deer from the seed itself.
Are deer a problem for birds?
Heavy deer browsing removes the shrub layer and forest understory that many songbirds nest and forage in, and in areas with high deer density that shows up as fewer nesting birds. A yard that feeds deer nightly is contributing to local density.