. A distributional list of the birds of Montana, with notes on the migration and nesting of the better known species . Fig. 20. Male Desert Horxed Lark; by A. D. DuBois. brood nests may be found with eggs in June and July. The earliest date foreggs is June 19, 1862 (Cooper, lS69b, p. 295), and the latest, July 18, 1874(Coues, 1874b, p. 557). A second laying at Button had the last egg of threedeposited July 8, 1916. The eggs hatched July 17 and 18, and the young leftthe nest July 28 (DnBois, MS). This gives a period of about twenty days fromthe laying of the last egg to the hatclii
. A distributional list of the birds of Montana, with notes on the migration and nesting of the better known species . Fig. 20. Male Desert Horxed Lark; by A. D. DuBois. brood nests may be found with eggs in June and July. The earliest date foreggs is June 19, 1862 (Cooper, lS69b, p. 295), and the latest, July 18, 1874(Coues, 1874b, p. 557). A second laying at Button had the last egg of threedeposited July 8, 1916. The eggs hatched July 17 and 18, and the young leftthe nest July 28 (DnBois, MS). This gives a period of about twenty days fromthe laying of the last egg to the hatcliing of the young. It would seem, figuringat this rate, that there would be time for a brood to be reared bclwccn the middle 1921 BIRDS OF MONTANA 93 of May, when the first brood is on the wing-, ami the nii(klle of .Tune when thesecond begins. Very few nests, however, seem to be (hited between the middhof I\Iay and the niiddk of June, which would indicate that the few found at thatseason are late stragglers of the first ^y^:^. Kig^ A. D. Fi \Di 1 \i•Bi 1 Di IIS. n i:k Nisr; Di ri( 183. Otocoris alpestris merrilli DwiiDrsKV IIt)RNED Lahk Snnnner resident of ])Breeds at ilissoula and is ;by Sloanaker (.MS) as the ains and open grass land in northwestern . permanent resident there ( Kittiedge. .MS). Listedbreeding form at Flathead Lake. Silloway (11)0]a,p. 56) considered the subspecies at that point to be h uiohn ma. Li itcohivina islisted as breeding in the Bitterroot Valley also (Bailey. .MS). Li ucahtnua doesoccui on the west side of the divide, and has been taken at .Missoula, .March 2), ina flock of iiurrilli (Kittredge, .MS), but it seems (piite probable that iik rrilli isthe prevailing breeding form, though many of the birds in this ngion an prob-ably intergrades. 1 secured a Iirieding bird at Silver Bow, just west of the di-vide. whi<h pioved to be Ii uidldciiiu. This was to be expected, however, as thegrass area where this bird was secured aetiudly cr
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbirds, bookyear1921
