Feral cats are thought to be a gigantic problem. Just around Soldier Field this spring, there are at least five cats that are making their meals on migratory birds. Homeowners also should terminate the use of pesticides during migration periods. For example, the popular pesticide, diazinon, is advertised to be able to kill more than 140 kinds of insects and pests. Unfortunately, it kills not only the targeted insects, but the birds that consume these insects.
Fledglings are more sensitive to pesticide toxicity than mature birds.
They can be poisoned easily by the contaminated insects fed to them by their parents. According to Craig Tufts, Director of National Wildlife Federation's Urban Wildlife Program, diazinon granules are deadly for songbirds who mistake them for feed grains. You can spot birds in the throes of diazinon poisoning as they stagger around and lean their heads to one side until death takes them. When death does not free the victim of pesticide poisoning, long-term effects include an inability to withstand cold temperatures, embryo death, changes in brooding behavior, and impaired reproduction. Homeowners and renters alike can take positive steps by planting bird-friendly gardens including plants that provide food and shelter.