bird neighbors-第38章
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that a heavy summer shower brings more robins' nests to the ground than we like to contemplate。 The color of the eggs; as every one knows; has given their name to the tint。 Four is the number of eggs laid; and two broods are often reared in the same nest。
Too much stress is laid on the mischief done by the robins in the cherry trees and strawberry patches; and too little upon the quantity of worms and insects they devour。 Professor Treadwell; who experimented upon some young robins kept in captivity; learned that they ate sixty…eight earthworms daily 〃that is; each bird ate forty…one per cent more than its own weight in twelve hours! The length of these worms; if laid end to end; would be about fourteen feet。 Man; at this rate; would eat about seventy pounds of flesh a day; and drink five or six gallons of water。〃
ORCHARD ORIOLE (Icterus spurius) Blackbird and Oriole family
Called also: ORCHARD STARLING; ORCHARD HANG…NEST
Length 7 to 7。3 inches。 About one…fourth smaller than the robin。 Male Head; throat; upper back; tail; and part of wings black。 Breast; rump; shoulders; under wing and tail coverts; and under parts bright reddish brown。 Whitish…yellow markings on a few tail and wing feathers。 Female Head and upper parts olive; shading into brown; brighter on head and near tail。 Back and wings dusky brown; with pale…buff shoulder…bars and edges of coverts。 Throat black。 Under parts olive; shading into yellow。 Range Canada to Central America。 Common in temperate latitudes of the United States。 Migrations Early May。 Middle of September。 Common summer resident。
With a more southerly range than the Baltimore oriole and less conspicuous coloring; the orchard oriole is not so familiar a bird in many Northern States; where; nevertheless; it is quite common enough to be classed among our would…be intimates。 The orchard is not always as close; to the house as this bird cares to venture; he will pursue an insect even to the piazza vines。
His song; says John Burroughs; is like scarlet; 〃strong; intense; emphatic;〃 but it is sweet and is more rapidly uttered than that of others of the family。 It is ended for the season early in July。
This oriole; too; builds a beautiful nest; not often pendent like the Baltimore's; but securely placed in the fork of a sturdy fruit tree; at a moderate height; and woven with skill and precision; like a basket。 When the dried grasses from one of these nests were stretched and measured; all were found to be very nearly the same length; showing to what pains the little weaver had gone to make the nest neat and pliable; yet strong。 Four cloudy…white eggs with dark…brown spots are usually found in the nest in June。
End