Night-Gaunt49Or of spring and rebirth. North American cuckoos are not parasitic, but cowbirds are. There numbers have been greatly reduced due to competition from cattle egrets, which also eat insects stirred up by grazing cattle. Having blown over in a storm from Senegal to Brazil in the late 1930s, these invasives have now covered the hemisphere.
Night-Gaunt49Or of spring and rebirth. North American cuckoos are not parasitic, but cowbirds are. There numbers have been greatly reduced due to competition from cattle egrets, which also eat insects stirred up by grazing cattle. Having blown over in a storm from Senegal to Brazil in the late 1930s, these invasives have now covered the hemisphere.