A common but colorful male house finch is a welcome winter guest at local feeders. Finches are be susceptible to avian conjunctivitis, a disease that primarily begins as a respiratory infection.  (Kimberly Mason/The Chronicle)
A common but colorful male house finch is a welcome winter guest at local feeders. Finches are be susceptible to avian conjunctivitis, a disease that primarily begins as a respiratory infection. (Kimberly Mason/The Chronicle)
A common but colorful male house finch is a welcome winter guest at local feeders. Finches are be susceptible to avian conjunctivitis, a disease that primarily begins as a respiratory infection. (Kimberly Mason/The Chronicle)

Comparing notes, taking count and keeping an eye out for disease

December 08, 2010 8:49 AM

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