Jonathan J. Chu
@jonathanjojochu.bsky.social
MSc | PhD candidate | I study + look at birds and cats | University of Guelph | jonathanjojochu.com
60 million is a big number that suggest cats have a negative impact of birds in Canada. Cat owners, municipalities, wildlife managers and researchers all have a part to play in ensuring our environments benefit wildlife, people and cats alike. stewardshipcentrebc.ca/cats-and-bir...
October 16, 2025 at 4:29 PM
60 million is a big number that suggest cats have a negative impact of birds in Canada. Cat owners, municipalities, wildlife managers and researchers all have a part to play in ensuring our environments benefit wildlife, people and cats alike. stewardshipcentrebc.ca/cats-and-bir...
There are still no direct measures of predation rates from cats in Canadian areas, but as followers of me are aware, we are working and will publish novel predation rates from Canadian localities soon!
5/6
5/6
October 16, 2025 at 4:25 PM
There are still no direct measures of predation rates from cats in Canadian areas, but as followers of me are aware, we are working and will publish novel predation rates from Canadian localities soon!
5/6
5/6
There is still a lot of uncertainty, we need more estimates of how many cats there are outside, especially from rural areas and of unowned cats.
4/6
4/6
October 16, 2025 at 4:24 PM
There is still a lot of uncertainty, we need more estimates of how many cats there are outside, especially from rural areas and of unowned cats.
4/6
4/6
We also incorporated many new predations rate studies that have adjusted predation rate parameters in the model to be slightly lower.
3/6
3/6
October 16, 2025 at 4:22 PM
We also incorporated many new predations rate studies that have adjusted predation rate parameters in the model to be slightly lower.
3/6
3/6
In 2013, it was estimated that cats kill between 105-348 million birds. Our updated estimate does NOT mean cats kill fewer birds now. The discrepancy comes from lower cat population estimates that we derived from primary field estimates rather than shelter intake and survey data originally used. 2/6
October 16, 2025 at 4:21 PM
In 2013, it was estimated that cats kill between 105-348 million birds. Our updated estimate does NOT mean cats kill fewer birds now. The discrepancy comes from lower cat population estimates that we derived from primary field estimates rather than shelter intake and survey data originally used. 2/6
Thanks for putting this together! Could I be added ?
December 8, 2024 at 5:38 PM
Thanks for putting this together! Could I be added ?
Thanks for putting this together, could I get added ?
December 8, 2024 at 5:36 PM
Thanks for putting this together, could I get added ?
Thanks for putting this together, could I be added ?
December 8, 2024 at 5:31 PM
Thanks for putting this together, could I be added ?