. Common birds of town and country . xas, Colorado, and Montana, and insouthern Canada; winters in the southern halfof the breeding range. Habits and economic status: This blackbirdis a beautiful species, and is well known fromits habit of congregating in city parks and nest-ing there year after year. Like other specieswhich habitually assemble in great flocks, it iscapable of inflicting much damage on any cropit attacks, and where it is harmful a judiciousreduction of numbers is probably sound policy. It shares with the crow and blue jay the evilhabit of pillaging the nests of small birds ofe
. Common birds of town and country . xas, Colorado, and Montana, and insouthern Canada; winters in the southern halfof the breeding range. Habits and economic status: This blackbirdis a beautiful species, and is well known fromits habit of congregating in city parks and nest-ing there year after year. Like other specieswhich habitually assemble in great flocks, it iscapable of inflicting much damage on any cropit attacks, and where it is harmful a judiciousreduction of numbers is probably sound policy. It shares with the crow and blue jay the evilhabit of pillaging the nests of small birds ofeggs and young, Nevertheless it does muchgood by destroying insect pests, especiallywhite grubs, weevils, grasshoppers, and cater-pillars. Among the caterpillars are army wormsand other cutworms. When blackbirds gatherin large flocks, as in the Mississippi Valley,they may greatly damage grain, either whenfirst sown or when in the milk. In winterthey subsist mostly on weed seed and wastegrain. (See Biol. Surv. Bui. 13, pp. 53-70.) 683.
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