-------------------+----------+----------+----------+---------- | 1889. | 1890. | 1891. | 1892. -------------------+----------+----------+----------+---------- Flicker | Mar. 28 | Mar. 26 | Mar. 30 | April 2 Chimney swift | April 15 | April 22 | April 16 | April 27 Hummingbird | ....... | May 7 | May 11 | ....... Kingbird | May 6 | May 14 | May 1 | May 4 Crested flycatcher | May 8 | May 1 | April 30 | May 3 Pewee | Mar. 27 | Mar. 27 | Mar. 31 | April 3 Wood pewee | May 12 | May 14 | May 6 | May 17 Red-winged | | | | blackbird | Mar. 13 | Mar. 12 | Feb. 25 | Mar. 9 Meadow lark | Mar. 14 | Mar. 12 | Feb. 23 | Mar. 17 Baltimore oriole | May 7 | May 1 | May 1 | May 3 Purple grackle | Mar. 2 | Feb. 13 | Feb. 18 | Mar. 6 Chipping sparrow | Mar. 29 | April 8 | April 13 | April 4 Field sparrow | Mar. 29 | Mar. 13 | Mar. 15 | Mar. 26 Chewink | April 11 | May 1 | April 18 | April 24 Indigo bird | May 12 | May 10 | May 8 | May 10 Scarlet tanager | May 9 | May 4 | April 28 | May 3 Barn swallow | April 22 | April 19 | April 19 | April 24 Red-eyed vireo | May 5 | April 30 | May 2 | May 3 Black-and-white | | | | warbler | April 20 | April 30 | April 24 | May 1 Yellow warbler | May 11 | May 1 | May 8 | May 4 Myrtle warbler | April 20 | April 27 | April 18 | April 7 Black-throated | | | | green warbler | May 5 | May 2 | April 19 | April 30 Ovenbird | May 3 | May 3 | April 29 | April 30 Maryland | | | | yellow-throat | May 6 | April 30 | May 1 | May 3 Chat | May 11 | May 5 | May 1 | May 3 Redstart | May 4 | May 3 | April 29 | April 30 Catbird | May 5 | May 5 | May 4 | April 30 Brown thrasher | April 22 | April 30 | April 19 | April 30 House wren | April 14 | April 30 | April 19 | May 5 Wood thrush | May 3 | April 30 | April 23 | May 2 Veery | May 6 | May 2 | April 28 | May 4 Hermit thrush | April 10 | April 13 | April 12 | April 3 Robin | Mar. 7 | Feb. 26 | Feb. 24 | Mar. 9 Bluebird | Mar. 8 | Feb. 23 | Feb. 17 | Mar. 9 -------------------+----------+----------+----------+---------
Another fact of great interest which bears on the south-to-north movement of migrating birds, and which these observations very clearly brought out, was the earlier appearance of individuals of various species at points nearer the river, the first arrival of the same species at points back from the river being, in many instances, several days later. The first report of the arrival of a given species usually came from a low, marshy tract of land immediately bordering the western shore of the Delaware. The second report came from a locality several miles back of the eastern shore of the river, but situated in the low plain of the river valley and within tide-water limits. The third report came from a place some miles back from the river on the uplands, but near the head of a stream emptying into the Delaware from the west. The last two places to report arrivals were situated farther up the river and some distance back from it. All this confirms the general idea that in migrating most, if not all, of the various land birds follow river valleys and invade the upland districts, lying back from either side, by way of the smaller tributaries.