Have you filled a feeder and watched the same birds come over and over? Do you wonder if the birds know something about you? The answer might surprise you. Many birds that visit backyards can tell the difference between people— and your level of sophistication is not what you might think.

Knowing how birds identify and remember people can be captivating in an academic sense and it can transform how you think about winter feeding birds and how you engage with the wild birds in your garden.

Yes, many birds in your backyard can identify individual humans.

Research shows that many backyard species can individualize humans. They can discern people based on their faces, clothing, and behavioral patterns. This is not anthropomorphizing, this is science.

American crows have been documented remembering human faces over the course of years. Once a person has been deemed a threat by the crows, the crows will remember and scold those people no matter what clothing the person is wearing. This was documented by some researchers from the University of Washington While the crows were still being trapped, they would hold a mobbing response to the person who trapped them and would teach their young to also recognize that person.

Black-capped chickadees, the regular and social visitors at bird feeders, exhibit these same skills. Studies show that they can tell the difference between people who feed them and those who are strangers. They are more likely to approach people who feed them and demonstrate less caution around individuals that they associate with food and safety.

Like Blue Jays, other members of the corvid family exhibit equal recognition abilities. Although, cardinals have been less studied, show some recognition behavior regarding regular vs. new feeders. The common thread? These birds are watching you. Your face, your patterns, your behaviour, they are storing all of it for future use.

The Science Behind Avian Memory and The Effect of Winter Season

While the brains of birds and mammals work differently, bird brains are highly efficient. In food-caching species, the hippocampus, which is the region of the brain that deals with spatial memory, is proportionately larger and grows in size during the autumn and winter seasons.

Chickadees show us what extreme memory and spatial cognition looks like. They increase the size of the hippocampus by about 30% every fall in preparation for the winter. This expansion helps them support the cognitive loads of caching and recalling thousands of seeds during the winter. In addition to remembering the location of a cache, some studies suggest chickadees remember the type of food stored (e.g. a worm) and the time elapsed since the food was cached. Remarkably, chickadees have been shown to recall >80% of cache sites after 28 days.

The winter season has some of the worst conditions, but birds' thinking skills improve, not decline. When food is hard to find and the temperature drops, remembering where food sources are located is crucial to survival. Birds are mentally challenged to keep track of the locations of the bird feeders, which humans are friendly, and which places are safe to hide from hungry predators and offer food.

The brain plasticity of the birds means the winter visitors at your feeders are at optimal cognitive performance. They’re not just surviving; they are learning, adapting, and remembering. They remember their surroundings and even you.

Which backyard birds have the best memory of people?

Not all birds that use feeders have the same memory capabilities. This is what you can realistically expect from different species:

Highly intelligent and person-focused:

• Over the years Corvids (crows, jays, magpies) have proven to have an advanced level of intelligence, as well as being able to use long-term facial recognition and have the ability to speak about specific people to other birds.
• Chickadees and titmice: Remarkable spatial memory and clear ability to identify regular feeders versus unfamiliar ones
• Nuthatches have a great memory for caching food and show experience with people.

Moderate recognition abilities:

• Cardinals exhibit modified behavior when in proximity to known individuals, but probably depend to a greater extent on behavioral routines rather than on the recognition of individual faces.
• Woodpeckers are territorial and can even tolerate certain humans in their habitat. They are quite habitual in their food gathering activities. They are known to memorize and revisit places where they can easily gather food.

Less person-focused:

• Sparrows and finches are flock-oriented birds that tend to respond more to environmental stimuli than to individual people. However, they do learn the locations of safe feeding sites.
• Juncos tend to hide more from humans and they feed on the ground. They are less likely to identify and recognize individual people.

Some of the difference may be explained by lifestyle. Chickadees, which are resident, year-round, territorial birds, have more reason and chance to gain knowledge about the people in their territory compared to the nomadic flocking species that pass through an area on a seasonal basis.

How to Earn the Trust of the Birds in Your Backyard

Would you like the birds residing in your yard to become acquainted with you? Simple, you just need to establish a routine. This guide will go through the most effective, easy, and realistic approaches.

Feeders should be filled at the same time every day for optimal bird watching. Birds are most active at dawn and dusk, and by feeding them in the morning, they will come to trust this routine.

Stay calm and move slowly. Sudden movements can trigger flight responses. When outside, try to not look at the birds in the eyes and talk softer. Also, give birds space so they can observe you without being threatened.

Use the same clothing every time you come to feed the birds. Birds can identify colors and patterns, and will learn to recognize you quickly if you wear the same jacket or hat for bird feeding.

Begin by standing some distance from the feeders. Gradually, you will be moving closer and closer over time. Some people have successfully hand fed chickadees by passing time in the area and then feeding while the birds were still eating.

Give high value foods. Mealworms, suet and sunflower seeds build positive associations. You become associated in their memory with high value food resources.

Having a birdbath available at all times is a good idea. Heated birdbaths in winter are a great tool to help attract birds to your yard. Water is harder to find than food, so birds will appreciate having this resource.

Have patience. Trust takes time to build. However, once built, that trust can last for years.

How This Will Impact Your Strategy For Feeding In The Winter

To better understand birds intelligence and memory is beneficial to the way you feed birds during winter season. These aren't just mindless birds mechanically visiting feeders. They are deciding based on past experiences.

Feeding your yard birds at the same time and place consistently isn't just helpful; it's critical for their survival. Birds will map out your yard and incorporate it into their daily survival routes. This reliability will, during extreme weather, potentially be the difference to help them survive a freezing night.

Bring in plenty of bird feeders in the winter and storms for the birds. When birds routes constantly change to get food sources and they'll remember where the feeders are located. If your feeders are empty during critical times, they'll prioritize other locations to get their food.

Think about how much food a chickadee needs to stay alive during winter nights. Each chickadee needs to eat around 35% of its body weight in food. Every time they forage for food, they have to be careful about how they spend their time. If you feed them regularly, they will start to consider you a part of their winter survival plan.

The relationship between birds and birders is not one-sided. It is also built on trust, pattern, and dependability. The birds that frequent your feeders also observe, learn, and most certainly remember you.

The birds depend on you, and they know who you are! So keep showing up and keep those feeders filled.

Happy birding!