================+==========================+============================= | Arrival | Departure SPECIES +----------------+---------+------------------+---------- | Range | Median | Range | Median ----------------+----------------+---------+------------------+---------- Great Blue Heron| Feb. 4-Apr. 8 | Mar. 20 | Oct. 10-Nov. 29 | Oct. 23 Green Heron | Mar. 29-May 4 | Apr. 27 | Sept. 1-Oct. 30 | Sept. 9 Common Egret | Apr. 8-May 12 | Apr. 2 | Sept. 4-Sept. 30 | Sept. 21 Black-crowned | | | | Night Heron | Mar. 27-May 18 | Apr. 25 | Sept. 10-Nov. 11 | Sept. 25 Yellow-crowned | | | | Night Heron | Apr. 15-May 18 | Apr. 27 | | American Bittern| Apr. 4-May 9 | May 1 | Oct. 6-Dec. 12 | Oct. 16 Least Bittern | Apr. 9-May 22 | Apr. 8 | Oct. 24 | ----------------+----------------+---------+------------------+---------- =Green Heron=: _Butorides virescens virescens_ (Linnaeus).--This is a common summer resident about streams, lakes, and marshes throughout the State. Some characteristics of the temporal occurrence of this species are indicated in Table 10. _Breeding schedule._--Twenty-eight records of breeding span the period April 21 to June 20 (Fig. 3); the modal date of completion of clutches is May 5. _Number of eggs._--Clutch-size is 3 eggs (3.1, 3-5; 17). Nests are placed about 10 feet high (two to 35 feet) in willow, cottonwood, elm, and the like. =Little Blue Heron=: _Florida caerulea caerulea_ (Linnaeus).--This is chiefly a postbreeding summer visitant, but there is one record of breeding in Finney County (Tordoff, 1956:312). _Breeding schedule._--There is no information on breeding schedule in Kansas or in adjacent areas. _Number of eggs._--Clutch-size is 2 to 4 eggs (Davie, 1898). Nests are placed in trees and bushes at various heights above the ground. =Common Egret=: _Casmerodius albus egretta_ (Gmelin).--This is a postbreeding summer visitant, but has been found nesting once in Cowley County (Johnston, 1960:10). Occurrence in time is listed in Table 10. _Breeding schedule._--There is no information on breeding schedule in Kansas. _Number of eggs._--Clutch-size is 2 to 4 eggs (Davie, 1898). Nests are placed in trees, usually above 20 feet in height; the one instance of nesting in the State was within a colony of Great Blue Herons. =Snowy Egret=: _Leucophoyx thula thula_ (Molina).--This postbreeding summer visitant has been found nesting once in Finney County (Tordoff, 1956:312). _Breeding schedule._--There is no information on breeding schedule in the State. _Number of eggs._--Clutch-size is 2 to 5 eggs (Davie, 1898). Nests in Kansas are placed among those of Great Blue Herons.