(Haemorhous mexicanus). Patient Number 23-8.

Date of admission: January 10, 2023.
Reason for admission: Left Wing Injury, Mycoplasma.

Patient History:

House finches are extremely social birds, often traveling in flocks of several hundred. They are resourceful and colorful, and their joyful chirping can be enjoyed all across North America. Adult males are rosy in color around the face and chest, whereas females sport a brown and tan streaked chest, and no coloring.

House finches are familiar visitors to backyard feeders, and often prefer man-made structures for their nests, if available. They can often be found in natural or artificial holes, in tall conifers, or at other suitable sites at least 12-15ft off the ground. The nest is built by the female and is made up of grassy debris and feathers.

House finches forage exclusively on plant materials like seeds, buds, and fruits. As a form of courtship, the male will actively regurgitate food to the female and will continue to do so during her incubation period. The young are also fed regurgitated seeds.

House finches lay on average 2-6 pale blue speckled eggs. Incubation is primarily completed by the female for approximately two weeks, however, both parents will feed the nestlings. They will both continue to co-feed the offspring after they have fledged from the nest as well. This occurs another 12-15 days after hatching.

This female house finch was brought to AIWC after being caught by a cat. After examination at our clinic, it was found that she was suffering from a fracture in her radius and ulna (lower wing) as well as mycoplasma. Mycoplasma is a common infection seen in birds, particularly in the winter when they frequent bird feeders. It is a treatable respiratory infection that presents with irregular breathing, and swollen or puffy eyes. She is improving daily and we hope she will make a full recovery in time for spring migration! Thank you for supporting her care.