“Monster” with an enrichment ball.
Behavioural Enrichment Defined
Gerald Durrell once said something that stuck with me;
The thing that turns a cage into a territory may be something quite slight, but it need not be the size. It might be the shape of the cage, the number of branches or the lack of them, the absence or presence of a pond, a patch of sand, a chunk of log, which could make all the difference. Such a detail, trivial to the uniformed visitor, can help the animal consider this area his territory, rather than simply a place where he ekes out his existence.’ —Gerald Durrell
He wrote this 1976 … and it is still true to this day.
“A process for improving or enhancing animal environments and care within the context of their inhabitants’ behavioral biology and natural history”—Dr. David Shepherdson
Enrichment Must Be Behaviourally Valuable:
For enrichment to truly benefit an animal, it must be motivating — something the animal wants to engage with, not something imposed. The animal’s choice and control are key indicators of value.
Why we do Enrichment
It’s the process of providing opportunities, in particular behavioural opportunities, that more normally encourage natural animal behaviours such as climbing, flying, digging, leaping, grooming, foraging etc. The act of enriching is the act of providing a better life for an animal in a captive situation—be it a farm animal or a zoo animal. All animals from pets to rehab animals need things to do to keep them occupied. Thus enrichment!
As Gabrielle Harris often says; Enrichment is Behavioural Management, its not a stand alone event any more!
What is the Value of Enrichment?
To Animals
- Increases welfare by promoting positive mental states.
- Encourages behavioural diversity and expression of natural behaviours.
- Reduces boredom, frustration, and stress.
- Builds coping capacity and resilience.
To Us
- Expands the animal’s behavioural repertoire (its “library” of behaviours).
- Enhances observation and understanding of motivation and learning.
- Provides opportunities for positive reinforcement and relationship building.
To Both
- Strengthens the human–animal bond.
- Serves as a tool to enhance learning, adaptability, and welfare.
- Contributes to overall success in care, training, and conservation programs
Links to Learn More
- The Categories of Enrichment (This page, below)
- Learn about SPIDER (New page)
- Sample Project System TODO
- Husbandry Forms TODO
The Categories of Enrichment
Sensory Enrichment
What can the animal get from using its senses?
How do the senses relate to the animal’s survival and situation related motivations?
Sight
How and why does it use its eyesight? Does it see far or not at all? How important is eyesight to the species or group?
Taste
Does it taste, what could it taste? What are the benefits to taste?
What are its methods of chewing, consuming and identifying through taste?
Smell
Links closely to taste. What information can smells offer? Don’t forget the environment offers a lot of smells (public, people, other animals, vehicles etc.).
Hearing
What sounds are in the environment (identify them), what can you add or remove? What information does sound offer an animal? Defence, offence: flight, fright, fight?
Touch
How does the animal physically interpret its environment? Elephants use their trunks to feel and gain valuable information, whereas most parrots use their beak and tongue to do the same. Cats perhaps use smell and sight over touch, but paws and whiskers can give them information.
Habitat Enrichment
What can the animal get from using its senses?
How do the senses relate to the animal’s survival and situation related motivations?
Topography
The variants the animal can utilize. Up, down, slopes, levels, rough, smooth etc.
Comfort
How does the habitat (environment) offer long term ‘comfort elements’? Shade, sun, privacy, hides, open plains etc.
Security
How does the animal behave when in fight or flight—what does the habitat offer?
Adaptability
Experiences to new things (learning opportunities). Can you change up the space with new plants or substrates etc?
Conditions
Seasons, weather, climate all play a role. Are they lethargic in summer or winter, do they migrate, do they nest? This can all be used to enrich your animal.
Cognitive Enrichment
- Remember—The individual animal counts here. What has it experienced?
- What is its Natural History, and how can you apply that to the species’ capacity to learn?
- How can you introduce experiences that are rewarding and positive? How can you enhance those rewarding experiences?
- Problem solving—it is all about LEARNING!
- Remember –Animals can be neophobic, don’t throw problems at them that they cannot solve or have never seen before. Slow incremental steps are important for uninitiated animals. (Neophobic—fear of new things).
Social Enrichment
Solitary or Social
What is the natural species’ tendency to socialize? Do they prefer to be solitary or not? How can you use their senses to ‘socialize’ with their environment—smells, sound, sight?
(Personal experience—at Pretoria Zoo, we had some drummers walk through the zoo, unknowingly they stimulated the elephants to call.)
Age
How does this apply? If your animal is geriatric or juvenile, it will define your enrichment level and intensity. What are the health implications of age?
Sex
How does the biology of the animal apply to enriching the individual? Nesting for birds and denning for foxes are examples. Another is scent marking for cats!
Interactions
How does the species interact with other species in the wild? (Are they cooperative?)
Benefits
What do they gain from socializing? (Safety in numbers, access to food, sex.)
Food Enrichment
- What food motivates your animal?
- What is the value behind the food? Novelty, cognitive or social value.
- How can you present the food? Use your routine to your advantage! Use food creatively
- How can you increase the activity and time budget of the animal?
- Increase the food reward to increase biological and emotional needs.
- Foraging—Looking, seeking
- Hunting—Resistance (bungee feeders)
- Socializing—Sharing, defending
- Remember the senses. How and why does the animal ‘interpret’ the food? Taste, smell, colour, temperature and weight of the food.
Kinaesthetic (Movement) Enrichment
Kinaesthetic is a new dimension of enrichment seriously considered and promoted by G. Harris.
- Ask yourself
”What behaviours do I want to enhance?” - Physiology
What and how does the animal use its limbs and appendages?
Strength and fitness, body-memory and exercise. Does the environment offer opportunity? Enrichment can help increase use of targeted body parts. E.g. the neck muscles, foot movement, stretching, balance, beak flicking, climbing, jumping, diving, digging.
Biology
How can enrichment increase health and well-being of internal organs, digestion, teeth, etc? Think of self maintenance (grooming, claws/talons, bathing etc.)