This was on a different bird list, thought it might be of interest to 
Cayuga birders.

-------- Forwarded Message --------

The Wilson Journal of Ornithology 130(1):313–320, 2018
The effectiveness of bird feeder cleaning methods with and without debris

Lisa M. Feliciano,1 Todd J. Underwood,1* and Daniel F. Aruscavage1

ABSTRACT—Although feeders provide supplementary food to wild birds, they 
can be a site of disease transmission. Periodic cleaning of bird feeders 
is recommended to prevent disease transmission, but little is known 
about which cleaning methods are most effective. We determined the 
effectiveness of 3 cleaning methods (scrubbing with soap and water, 
bleach soak, and scrubbing with soap and water followed by a bleach 
soak) in removing Salmonella from feeders with debris from normal field 
use and without debris. Feeders were inoculated with Salmonella enterica 
in the lab and then swabbed before and after cleaning to determine the 
percent reduction of Salmonella colony forming units (CFU/mL). All 
cleaning methods effectively reduced levels of Salmonella on feeders 
without debris, but the presence of debris significantly lowered the 
percent log reduction of Salmonella CFU/mL on feeders. The bleach soak 
and the scrubbing with soap and water plus bleach soak methods had a 
significantly higher percent reduction in Salmonella CFU/mL than the 
scrubbing with soap and water method overall. A significant interaction 
between debris and cleaning method was noted, however, indicating that 
the presence of debris greatly lowered the percent reduction of 
Salmonella CFU/mL on feeders cleaned with the scrubbing with soap and 
water method compared to other methods. *Overall, we recommend either 
scrubbing with soap and water or a bleach soak to clean feeders with 
minimal debris, but suggest a combination of these 2 cleaning methods if 
feeders have heavy debris or if diseased birds are known to be in the area.*


Cayugabirds-L List Info:


Please submit your observations to eBird:


Reply via email to