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Writer's pictureCalgary Wildlife

Patient Release Process


Our primary mission at the Calgary Wildlife Rehabilitation Society is to rehabilitate and release wildlife back into the wild. Our process begins when we intake injured animals, which can occur through volunteer-based pickups, citizen drop-offs, or transfers from other organizations. Once an animal arrives, it undergoes a thorough initial examination to assess its condition. This examination is followed by the development of a tailored treatment plan to address the specific needs of the animal.


During the treatment phase, our team of wildlife rehabbers, vet techs, and vet provide the necessary medical care, including surgeries, medication, and supportive therapies. Our goal is to ensure that each animal receives the highest standard of care, promoting full recovery and well-being. Throughout the rehabilitation process, we closely monitor the animal’s progress, adjusting the treatment plan as needed to optimize outcomes.


Once an animal is medically cleared and fully healed, we transition to the next critical phase: behaviour observation and testing. This step is crucial to ensure that the animal can thrive independently in the wild. For instance, birds such as hawks and owls are placed in flight pens to observe their flying and hunting behaviours prior to all releases. Across all species, we make sure the animals are not habituated to human presence, as this could compromise their survival in the wild.


Only when we are confident in the animal’s ability to survive independently do we initiate the release process. This comprehensive approach ensures that each animal has the best possible chance of thriving once returned to its natural habitat.



Canada geese getting released by Calgary Wildlife

Figure 1. A group of juvenile Canadian geese released back into their pond environment.


Our release protocols are designed to maximize the success and well-being of the animals we rehabilitate. One of our core principles is to release animals back into the area where they were found (providing the area is safe for the animal). This approach respects the existing ecosystem and helps maintain population control within the territory. Relocation poses significant risks, including the potential spread of pathogens and viruses to new areas. Additionally, animals often have established territories, shelters, and familiarity with their habitats, which are crucial for their survival.


We always time releases to align with the animal’s natural behaviour patterns, considering whether the animal is diurnal, nocturnal, or crepuscular. Weather conditions play a critical role in our decision-making process. For example, we avoid releasing raptors on a windy days near electrical poles/wires, as they can pose a significant risk. Seasonal considerations are also vital. For migratory birds or bats, if they have not healed in time to migrate, we may hold them until their species return to the area, delaying their release to ensure it corresponds with their natural behaviour.




Figure 2. Patient being release back into its habitat by our team..




For assistance with injured wildlife, please contact the Calgary Wildlife Rehabilitation Society at 403-214-1312.




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