Show of Doors in the West Natural History in the Rocky Mountain Plateau Professor of Nature Study in the University of Utah I. Some Birds of the Our Orange Tipped and Yellow SAGE field trips with my ViE we have observed gray bird of it is known sage and is the kiffin form that corresponds to ILm thrasher of ft streaked long tail and and coloring in some a good deal of brown tHere the points most noli in field observation of and interesting fairly common in and it is said to t more abundant southward thorn bush yuccas and Arizona and In valley it was a almost as dark in color it been the latter it comes abundantly as pt as the Colorado belongs to the bird which includes the mock-j d the catbird and the like most of the other S of the as A H is it is a fine V f This bird often sings especially on The song is varied and the main 1 J of considerable length I ot He sings from 1 ff a sage brush or fence rence he darts the i intervals to capture his perch and PUring out his sparkling on j j ghe thrasher has a run- i L S bird C nine inch-W a rather long ter than its an of tail t iS S winS which has upper parts dull grayish brown indistinctly streaked wings with two narrow white bars tail with inner web of 2 to 4 outer feathers tipped with which show as white tail corners as he disappears with long undulating flight over the face of the sage The under parts are buffy on flanks and under tail breast and sides heavily marked with black A bulky nest is built in sage containing from 3 to 5 greenish blue spotted with clove Goodwin's Before the nature study classes at the Goodwin indicated how to observe this The Brown Thresher sweet a member is the sage in the course of walks afield with the the teacher should go toward the foot of the or out on the sagebrush reaches which stretch away to valleys and hills she is almost sure to meet with this To some of the people of Utah it is known as the If you do not succeed in coming close to the you will know from the sweetness of the bird was formerly known as the and the carrying power of his that one of the finest singers which brighten vast areas of our state with their is before The general effect of the colors of the as one of its common names is the of the tail feathers snow as he flies from Food of the From the summary by I the following The brown thrasher of the east is darker and lacks the white tail things of the sage Oth it is similar in habits md general coloring to the lighter colored bird of the The sage thrasher occasionally visits the but makes its nest among the sages or ill Its food consists of 64 per and vegetable matter 36 per cent a little grain and but mostly wild berries and Thus the thrasher is a useful doing as much good by destroying the insects in their greater breeding among the sagebrush and as in the cultivated for the insects migrate from the open country to attack the crops of the Once the writer heard from a fence in Rich county ut- a tremulous melody that would have done credit to a mocking Every few minutes it would stop singing and to the ground to gather in an insect with its curved The Sagebrush Near the not far from the salt works we found numbers of Brewer or sage brush evidently nesting ing in the large sage brushes covering the dunes of white sand at some time washed up by the waters of the lake and the east The silvery darting dark along the upper part of the body and over the and especially its habit of mounting the highest sage brush to were its most noticeable Bailey describes its odd little song as somewhat similar in quality to that of a march with something of the jingle of a the ditty is so cheery and bright as to be distinctly The birds often sing in curious little tinkling song was coming up from all over the and it seemed as if we had come upon a march full of though marsh This bird measures from to inches in the upper parts are grayish streaked with the under soiled the tail appears to be as long as the ind accounts for the darting The usually are speckled with The nest is built sage and is made of fine grass fibres and lined with long The bird goes southward in The Sage Another sparrow of the sage brush plains of the Rocky mountain is the sage It is as long as the English but much lighter This species is found everywhere in the great and his gray colors blend with the grayish green of the He likes to sit on the tops of the his tail slowly tilting as branch In the spring he sings a sweet but is silent at most other This bird has a black spot on the chest and a series of narrow b streaks on the sides of the Upper parts light grayish brown with narrow Under parts This bird nests in the sagebrush and lays three or four greenish white or gray eggs speckled with reddish The Orange The orange tips are small white butterflies with the outer front tips of the fore wings region of the colored dark brown and marked with spots and bands of yellowish orange and The wings have green spots and lines on These pretty species are fairly common with the dainty fairies appearing gossamer-like and cool in these summery colored so beautifully with red and pale is the name of the sara has near white wings tipped with red triangles that are trimmed with In our region we have the variety which has in addition brown spots on the margins of the rear The variety which has in addition brown spots on the margins of the rear Stella is the variety has wings greenish below the fore wings topped with greenish and the hind wings marked above with three irregular green A smaller more lustrous the green markings resembling green is named The Cloudless Very beautiful are the great sulphur of the gennis They are pale and Our western species is C. the cloudless one of the most attractive of our butterfly It measures inches across the immaculate Its plants of the pea and is said to be partial to the cassia The Clouded The commonest butterfly next to the common white of the cabbage are the clouded or yellow butterflies of the clover and alfalfa The best known called the clouded is light yellow and glistening with a reddish spot on each It is a pale form of the following calia Forms of this butterfly with black margined This is a variable form with yellow wings the female with a sub-marginal row of yellow spots an the But some of the females are white instead of This species is said to dimorphic two and it varies The larva feeds on clover and allied Four species of the clover all medium sized and with wings occurs They Mead's sulphur with wings orange above and greenish it lives in the mountains an alpine Striker's sulphur the male having narrow black margins and the female more abundant yellow The canary yellow Colias is a pale canary yellow with narrow black the female is clear yellow or white without black The undersides of the wings are silvery yellow at the The caterpillar feeds on the Scudder's sulphur is the black low wings with rosy the female nearly white with a small brown spot on each and greenish-gray The wings expand nearly two The caterpillar feeds on |