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Understanding Hawks, Owls and Falcons - Bird Guide

Understanding Hawks, Owls and Falcons - Bird Guide

Author Medhat Youssef
8:51 AM
5 min read

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ðŸĶ… Field Guide

Raptors in Your Backyard:
Understanding Hawks, Owls & Falcons

A comprehensive guide to the birds of prey that visit your feeding station — why they're there, how to identify them, and how to ethically coexist with nature's most magnificent predators.

5 Key Species
25+ Years Research
Reasons to Coexist
ðŸŒŋ Section 01

Why Raptors Visit Your Backyard Feeders

Understanding the "why" transforms alarm into appreciation

ðŸŽŊ The Predator-Prey Connection

After 25 years of observing backyard feeding stations across diverse habitats, I can tell you with absolute certainty: if you build a successful feeding station, raptors will come. This isn't a problem — it's proof that your yard has become a functional ecosystem. A bird feeder doesn't just attract chickadees and cardinals; it creates a concentrated food resource that ripples up the entire food chain.

Raptors are drawn to feeding stations by the same biological imperative that drives songbirds to your seed: energy efficiency. A Cooper's Hawk that discovers a reliable congregation of House Sparrows at your tube feeder has found the avian equivalent of a favorite restaurant. The hawk's hunting success rate at feeders can be significantly higher than in scattered woodland foraging.

A hawk at your feeder isn't a sign that something has gone wrong. It's a sign that everything has gone right. Your yard has become real habitat — complex, layered, and alive.

— 25 years of backyard raptor observation
🧠

Did You Know?

Studies have shown that Cooper's Hawks actually prefer hunting in suburban habitats over rural ones. Suburban areas provide a combination of dense prey populations (attracted to feeders), abundant perching structures (fences, utility poles), and fragmented cover that creates ideal ambush corridors. Your backyard is prime raptor habitat by design.

ðŸŠķ
🔍 Section 02

Cooper's Hawk vs. Sharp-shinned Hawk

The two feeder hawks that every backyard birder must learn to distinguish

ðŸĶ…
Cooper's Hawk
Accipiter cooperii
📏
Size
14.5–20 inches (37–51 cm). Roughly crow-sized. Females notably larger than males.
ðŸŽĐ
Head Shape
Large, angular head with a flat crown that projects well beyond the wrists in flight. Often described as appearing "fierce."
Tail
Rounded tail tip with a wide white terminal band. Tail often appears barrel-shaped in flight.
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Legs
Thick, sturdy legs — noticeably robust. Good for gripping larger prey like doves and jays.
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Hunting Style
Patient ambush predator. Often perches quietly near feeders, waiting for the perfect strike moment. Powerful, direct pursuit.
ðŸ―️
Primary Feeder Prey
Mourning Doves, Blue Jays, European Starlings, Northern Flickers, American Robins, and smaller birds.
VS
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Sharp-shinned Hawk
Accipiter striatus
📏
Size
9.4–13.4 inches (24–34 cm). About Blue Jay-sized. North America's smallest accipiter.
ðŸŽĐ
Head Shape
Small, rounded head that barely projects beyond the wrists in flight. Gives a "dove-like" or "gentle" appearance.
Tail
Square-tipped tail (sometimes appears slightly notched). Thinner white terminal band than Cooper's.
ðŸĶĩ
Legs
Thin, pencil-like legs — delicate and proportionally smaller. Adapted for catching small songbirds.
ðŸŽŊ
Hunting Style
Lightning-fast surprise attacks. Often bursts through cover at speed, using hedges and buildings as concealment.
ðŸ―️
Primary Feeder Prey
House Sparrows, chickadees, juncos, goldfinches, warblers — generally targets birds under 2 oz / 55 g.
Feature Cooper's Hawk Sharp-shinned Hawk Quick Memory Aid
Overall Size Crow-sized (14.5–20") Jay-sized (9.4–13.4") "Cooper's = Crow"
Head Projection Large head extends well beyond wrists Small head barely extends past wrists "Cooper's has a capital C-sized head"
Tail Shape Rounded tip, wide white band Square/notched tip, narrow white band "Round = coOper's"
Leg Thickness Thick, sturdy "drumsticks" Thin, delicate "pencils" "Sharpie = Skinny shins"
Adult Eye Color Red-orange to deep red Red-orange to deep red Similar — not a reliable field mark
Nape Pattern Strong contrast: dark cap, pale nape More uniform dark hood "Cooper's wears a cap, Sharpie wears a hood"
Flap Pattern Stiff, deliberate flaps; "flap-flap-glide" Quick, snappy flaps; more fluttery "Cooper's is controlled, Sharpie is frantic"
Feeder Behavior Patient perching, deliberate approach Explosive surprise attack from cover "Cooper's waits, Sharpie crashes"
Abundance at Feeders Very common; #1 feeder hawk Common; more frequent in migration/winter Cooper's wins slightly in suburbia
⚠️ ID Overlap Warning: The Danger Zone
! Female Sharp-shinned Hawks and male Cooper's Hawks overlap significantly in size. This "overlap zone" tricks even experienced birders. In these cases, rely on structural features (head shape, leg thickness, tail shape) rather than size alone.
! Juvenile birds of both species have yellow eyes and brown streaking below, making age-related plumage differences less useful. Focus on shape and proportions — they don't change with age.
! It's perfectly okay to say "Accipiter sp." when you're unsure. Even the professionals do. A 25-year veteran will tell you: intellectual honesty is better than a forced ID.
ðŸ’Ą Pro Field ID Tips from 25 Years in the Field
1 Watch the tail as it perches: Cooper's tail often shows a graduated, rounded look; Sharp-shinned shows a more uniform, square-cut edge. This single field mark resolves the majority of perched IDs.
2 Check head projection in flight: From below, Cooper's Hawk looks like a "flying cross" with its large head pushing forward; Sharp-shinned looks like a "flying T" with minimal head extension.
3 Listen for alarm calls nearby: If Blue Jays are mobbing the hawk, it's more likely a Cooper's (their primary predator). Chickadees giving high-frequency "seet" calls? More likely a Sharpie lurking in dense cover.
4 Photograph everything: Even a blurry photo captures structural details your brain may miss in the excitement of the moment. Review later with calm eyes.
ðŸŠķ
🔄 Section 03

The Role of Raptors in Ecosystem Balance

Understanding the invisible web of life that raptors maintain

The Backyard Food Web Pyramid
ðŸĶ…

Apex Predators — Hawks, Owls, Falcons

Top-down regulation of prey populations. Fewer individuals, each requiring vast energy input.

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Primary Consumers — Songbirds, Doves, Sparrows

Seed and insect eaters that are both consumers and prey. Their populations are naturally regulated by predation.

🐛

Insects, Seeds, Fruits, Small Invertebrates

The base food supply for songbirds. Healthy insect populations support healthy bird populations.

ðŸŒą

Plants, Soil Organisms, Decomposers

Foundation of all backyard life. Native plants feed the entire chain above them.

🔎 What Science Tells Us About Predation

Ornithological research consistently shows that raptor predation at feeding stations does not significantly reduce local songbird populations. Raptors primarily take individuals that are already compromised — the sick, the injured, the old, and the inattentive. This is called compensatory mortality: these birds would likely have died from other causes (disease, starvation, exposure) even without predation.

In fact, raptor presence can actually improve the overall health of your feeder bird community by:

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Disease Regulation

Raptors remove sick and weakened birds before they can spread diseases like avian conjunctivitis or salmonellosis to the rest of the flock at your feeder.

🧎

Genetic Fitness

By targeting the least vigilant individuals, raptors exert selection pressure that maintains alertness, agility, and survival instincts in prey populations over generations.

⚖️

Population Balance

Without predation, feeder-dependent populations can spike beyond the carrying capacity of available habitat, leading to stress, disease outbreaks, and crashes.

🧠

Behavioral Enrichment

Predator presence forces songbirds to exercise natural vigilance behaviors — rotating sentinels, alarm calling, and strategic foraging that are essential survival skills.

ðŸŠķ
Section 04

Why Raptors Mean Your Station Is Thriving

Reframe your thinking: predator presence equals ecological success

🏆 The Raptor Litmus Test

In my decades of consulting on backyard bird habitats, I use a simple benchmark: Has a raptor visited within the past 30 days? If yes, the station is generating enough biological activity to attract a top predator. That means sufficient prey diversity, adequate cover structure, reliable food resources, and a functioning micro-ecosystem. Raptors are the ultimate stamp of ecological approval.

I've evaluated hundreds of feeding stations over 25 years. The ones visited by raptors are invariably the most species-rich, the most structurally diverse, and the most ecologically functional. The hawk is the report card — and yours says "A+".

— Field assessment insight
📊

Fascinating Statistic

Research on Cooper's Hawks in urban environments shows that their hunting success rate is typically only about 10-20% per attempt. The vast majority of feeder birds escape every single attack. The feeder songbirds in your yard are far more adept at evading raptors than most people realize. Evolution has equipped them with remarkable escape abilities.

✅ Benefits of Raptors at Your Station

ðŸŸĒ Confirms your station supports a complete food web
ðŸŸĒ Natural disease control by removing sick individuals
ðŸŸĒ Prevents overpopulation and feeder crowding stress
ðŸŸĒ Enhances natural behavior in feeder birds (vigilance, alarm calls)
ðŸŸĒ Provides spectacular observation opportunities
ðŸŸĒ Indicates healthy habitat structure (cover, perches, corridors)

⚡ Challenges to Accept & Manage

🟠 Witnessing predation can be emotionally difficult
🟠 Temporary decrease in feeder activity during raptor visits
🟠 Feathers and occasional remains may appear in the yard
🟠 Risk of window strikes when birds flee in panic
🟠 Children or guests may be alarmed by nature's realities
🟠 Can be used as a teaching moment about ecosystems (turn it into a pro!)
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ðŸĶ‰ Section 05

Screech Owl Attraction with Nest Boxes

Invite these enchanting nocturnal raptors into your yard

🌙 The Backyard Owl You Didn't Know You Had

Eastern Screech-Owls (Megascops asio) and Western Screech-Owls (Megascops kennicottii) are among the most common raptors in suburban North America — and the most overlooked. These compact, 8–10 inch owls are cavity nesters that readily accept properly designed and placed nest boxes. I've helped install over 200 screech owl boxes over my career, and the occupancy rates are genuinely impressive when the habitat is right.

Unlike the hawks at your feeder, screech owls operate at night. They're insectivores, small-mammal specialists, and occasional takers of small birds. Their presence adds an entirely new dimension to your backyard ecosystem — a nocturnal predator layer that complements the diurnal raptors.

ðŸĶ‰
Screech Owl Box
Eastern / Western Screech-Owl
Floor Size 8" × 8"
Interior Height 14–18"
Entrance Hole 3" diameter
Hole Height 9–12" above floor
Mount Height 10–30 ft
Facing Direction East or South preferred
Predator Guard Essential (cone baffle)
Floor Bedding 2–3" wood shavings

ðŸ’Ą Pro tip: Screech owls don't build nests — they rely entirely on the substrate you provide. Use untreated wood shavings (NOT cedar), and refresh them annually after nesting season ends.

ðŸĄ
Placement Guide
Critical Success Factors
Habitat Mature trees, mixed woodland edge
Tree Species Large deciduous preferred
Canopy Partial shade, not full sun
Open Flyway Clear approach to entrance
Water Source Within 500 ft ideal
Install Timing By late January (before scouting)
Clean-Out Late Sept–Oct annually
Monitoring Check from distance; don't disturb

⚠️ Important: Never install a screech owl box near a bird feeder. You'll create a predation trap. Maintain at least 50–100 feet of separation. Owls need their own "zone."

📐 Screech Owl Box — Key Dimensions
← 3" entrance hole 14–18" → 8" × 8" floor
ðŸŠĩ

Material: Use ¾" untreated lumber (cedar or pine). Do NOT use pressure-treated, painted, or stained wood.

ðŸ’Ļ

Ventilation: Drill 2–3 small drainage holes in the floor and ventilation gaps near the top of each side wall.

🔧

Access: Include a hinged side panel for annual clean-out and monitoring. Secure with a latch, not nails.

ðŸŋ️

Protection: Mount a metal predator guard below the box. Raccoons and snakes are the primary nest threats.

ðŸĶ‰ Screech Owl Attraction Secrets
1 Leave dead snags: Standing dead trees are primary natural nesting sites. If safe, leave them — they're owl magnets.
2 Reduce outdoor lighting: Light pollution disrupts owl hunting. Shield or eliminate unnecessary nighttime lighting near the box.
3 Maintain leaf litter: Deep leaf litter supports the insects, mice, and other invertebrates that screech owls rely on.
4 Be patient: It may take 1–3 seasons for owls to discover and accept a new box. Don't give up after one empty winter.
5 Install a birdbath: A shallow water feature (especially with a dripper) attracts owls for drinking and bathing at dusk.
ðŸŠķ
🏠 Section 06

American Kestrel Nest Box Programs

North America's smallest falcon needs our help — and your yard may be the answer

📉 A Declining Falcon That Responds to Conservation

The American Kestrel (Falco sparverius) — North America's smallest and most colorful falcon — has experienced population declines of approximately 50% since the 1960s in many parts of its range. The causes are multifactorial: habitat loss, pesticide exposure, cavity competition from European Starlings, and the systematic removal of old wooden fence posts and dead trees that once provided abundant nesting cavities.

The good news? Kestrels readily accept nest boxes. Citizen-driven nest box programs have been among the most successful raptor conservation tools ever deployed. If your property borders open grassland, agricultural fields, or large meadows, you may be perfectly positioned to participate.

ðŸ”ī Why Kestrels Need Our Help — Population Threat Factors
Habitat conversion: Open grasslands converted to development or intensive monoculture, eliminating hunting grounds.
Cavity shortage: Modern fence posts are metal or treated wood; old wooden posts with natural cavities are vanishing.
Starling competition: European Starlings aggressively usurp kestrel cavities, sometimes destroying eggs or killing nestlings.
Secondary poisoning: Rodenticides and insecticides bioaccumulate in the insects and rodents kestrels eat.
Specification ðŸĶ‰ Screech Owl Box ðŸĶ… American Kestrel Box
Floor Dimensions 8" × 8" 9" × 9" to 10" × 10"
Interior Height 14–18" 15–18"
Entrance Hole 3" round 3" round
Mounting Height 10–30 ft on tree 12–30 ft on pole, tree, or building
Ideal Habitat Woodland edge, suburban canopy Open grassland, pasture, farm edge
Entrance Facing East/South (shade preferred) East/South (facing open field)
Predator Guard Cone baffle on tree Pole mount with baffle preferred
Primary Prey Insects, mice, small birds Grasshoppers, voles, mice, small birds
Install Deadline Late January Late February (before March scouting)
Monitoring Minimal, distance observation Structured program; data collection valuable

📋 How to Start or Join a Kestrel Nest Box Program

The most successful kestrel box programs follow a structured approach. Here's what decades of community-science programs have taught us about what works:

Step Action Timeline Priority
1 Assess habitat — is there open grassland/pasture within sight of the potential box location? Anytime Critical
2 Contact local raptor center, Audubon chapter, or hawk watch group for regional protocols Fall Critical
3 Build or acquire boxes to approved specifications (avoid commercial "decorative" boxes) Nov–Jan High
4 Install boxes facing open foraging habitat, with clear flight lines and predator guards Dec–Feb Critical
5 Monitor for occupancy using distance observation (spotting scope, binoculars) Mar–Apr High
6 Record data: egg count, hatch date, fledge date, number fledged — report to program coordinator Apr–Jul Standard
7 Clean out box after fledging complete; repair, replace bedding, check for damage Aug–Sep High
ðŸŽŊ

Success Story

The Peregrine Fund's American Kestrel Partnership has documented thousands of successful nestings through citizen-installed nest boxes across the continent. In many areas, occupancy rates for properly placed boxes exceed 40–60% within the first two seasons. Every box you install becomes a data point in one of the largest community-science raptor programs ever conducted. Your backyard can contribute to continental conservation.

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ðŸĪ Section 07

Ethical Coexistence: Living with Backyard Raptors

The definitive do's, don'ts, and principles from 25 years of practice

⚖️ The Core Principle

The foundation of ethical raptor coexistence is simple but sometimes difficult to accept: Predation is not cruelty. It is ecology. When you run a feeding station, you are participating in a natural system. That system includes predators. The most ethical response is to observe, appreciate, and never intervene in the natural predator-prey dynamic unfolding in your yard.

I say this with compassion — I understand the emotional difficulty of watching a hawk take a bird you've been feeding all winter. But every intervention distorts the natural balance you've worked to create. The hawk needs to eat too. Your role is steward, not referee.

Do This

Observe & Document

Watch the interaction. Take notes. Photograph if possible. You're witnessing wildlife behavior most people never see.

ðŸšŦ Never Do This

Chase or Scare Hawks

Harassing raptors is illegal under the MBTA and equivalent laws. It also teaches nothing and changes nothing.

Do This

Provide Dense Cover

Plant thick native shrubs (like serviceberry, winterberry, or dogwood) near feeders so prey has natural escape routes.

ðŸšŦ Never Do This

Remove Feeders Permanently

This punishes the 95% of birds that are successfully coexisting. The hawk will simply hunt elsewhere.

Do This

Apply Window Treatments

Panicked birds fleeing hawks often hit windows. Window decals or UV-reflective film saves far more birds than removing raptors would.

ðŸšŦ Never Do This

Use Fake Owls or Deterrents

These don't work on real raptors (they're too intelligent). They only add visual clutter and false confidence.

📝 The Ethical Coexistence Protocol (Step by Step)

When a raptor begins visiting your feeder, follow this evidence-based response protocol developed over decades of field observation:

Think

🧠 Step 1: Reframe Your Mindset

This is not a crisis — it's a nature documentary in your backyard. Remind yourself that the hawk is a native species exercising its ecological role. Its presence means your habitat is working.

Do

✅ Step 2: Assess Your Setup for Safety Hazards

Check for window strike risks (apply decals), ensure feeders have nearby dense escape cover (within 10–15 feet), and verify there are no entanglement hazards like loose netting or string.

Do

ðŸŒŋ Step 3: Improve Habitat Structure

Plant native shrubs with dense branching near (but not under) feeders. Evergreen cover like holly, juniper, or dense conifers gives songbirds reliable escape habitat year-round.

Avoid

ðŸšŦ Step 4: Do NOT Take Down Feeders as a Reaction

If you must reduce activity temporarily (e.g., a hawk has been camping persistently for days), take feeders down for 2–3 days maximum. The hawk will expand its range. Then resume normal feeding.

Do

📷 Step 5: Document and Report

Log raptor visits in eBird or your field journal. Note species, time, behavior, prey targeted, and success/failure. This data contributes to real ornithological research.

Think

🎓 Step 6: Educate Others

Share what you've learned with neighbors, family, and social media. The biggest threat to backyard raptors isn't predation — it's human misunderstanding. You're now an ambassador.

⚠️ Legal Reminder
! All raptors are federally protected under the Migratory Bird Treaty Act (MBTA) in the United States and similar legislation in Canada and Mexico. It is illegal to harass, harm, trap, shoot, poison, or otherwise interfere with any hawk, owl, falcon, or eagle. Violations carry significant fines and potential imprisonment. When in doubt, contact your state or provincial wildlife agency.
ðŸŠķ
📅 Section 08

Seasonal Raptor Activity Calendar

When to expect different species and behaviors throughout the year

ðŸŒļ
Spring
Mar–May: Cooper's Hawks establish nesting territories and become more vocal. Sharp-shinned Hawks migrate north. Screech owls begin egg-laying in boxes. Kestrels start nesting in early April. Best time to spot courtship displays.
☀️
Summer
Jun–Aug: Fledgling raptors appear — young Cooper's Hawks are clumsy and conspicuous. Screech owl families may use boxes as roost sites. Kestrel fledglings practice hunting from fence posts. Watch for juvenile raptors learning to hunt.
🍂
Fall
Sep–Nov: Peak migration! Sharp-shinned Hawks flood southward through yards. Immature Cooper's Hawks disperse and explore new territories (often your feeder). Clean and prepare nest boxes for winter roosting. Highest feeder-visit frequency.
❄️
Winter
Dec–Feb: Resident Cooper's Hawks patrol feeders regularly. Wintering Sharp-shinneds settle into territories. Screech owls may begin pre-nesting roost site selection. Kestrels hover-hunt over frozen fields. Best observation window at feeders.
ðŸŠķ
Quick Species Reference Card
ðŸĶ…
Cooper's Hawk
Accipiter • Hawk
The #1 feeder hawk. Crow-sized, round tail, large head. Patient ambush hunter. Year-round presence in suburbia.
ðŸĶ
Sharp-shinned Hawk
Accipiter • Hawk
Jay-sized, square tail, small head. Explosive surprise attacker. More common in migration and winter at feeders.
ðŸĶ‰
Eastern Screech-Owl
Megascops • Owl
8–10" nocturnal cavity nester. Red or gray morph. Accepts nest boxes readily. Trilling and whinnying calls at dusk.
ðŸĶ…
Western Screech-Owl
Megascops • Owl
Similar to Eastern cousin. Found west of Rockies. Slightly different vocalizations. Same nest box specs apply.
🏠
American Kestrel
Falco • Falcon
North America's smallest falcon. Cavity nester, declining populations. Open grassland specialist. Nest box programs highly effective.

🎓 Final Words from 25 Years in the Field

I've spent a quarter of a century watching raptors interact with backyard feeding stations, and the single most important lesson I've learned is this: the best backyard birders are the ones who welcome the entire community — predators included. The chickadee at your tube feeder and the Cooper's Hawk watching it from the hemlock are both part of the same story. One doesn't exist without the other.

Your feeding station is not a zoo exhibit or a protected sanctuary. It's a window into a living, breathing ecosystem that follows rules far older than any human yard. The hawks, owls, and falcons that visit are not intruders — they are the final proof that you've built something real. Something alive. Something wild.

Embrace the entire food web. Install nest boxes. Document what you see. Educate your neighbors. And never, ever apologize for the hawk.

🏆 Top 7 Takeaways for Raptor Coexistence
1 Raptors at your feeder = ecological success — your station is supporting a complete food web.
2 Learn the Cooper's vs. Sharp-shinned ID — use head shape, tail shape, and leg thickness, not just size.
3 Never intervene in a natural hunt. Predation is ecology, not cruelty. All raptors are federally protected.
4 Treat your windows — panic flights into glass kill more birds than hawks do. This is your #1 actionable step.
5 Plant dense native shrubs within 10–15 feet of feeders to give prey birds natural escape cover.
6 Install screech owl boxes in shaded woodland settings — they're one of the most rewarding nest box projects available.
7 Support kestrel programs if you have open-field habitat. Declining populations respond powerfully to nest box deployment.
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