...The distribution of clutches () extends from the lastthird of March to the first third of August, and the modal date ofclutches is in the first third of June... 
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Fifteen records of breeding span the periodApril 1 to June 10; the modal date of egg-laying is in the first tendays of May...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Thirty-six records of breeding span the periodFebruary 21 to April 10 (); the modal date of egg-laying isMarch 5...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Sixty-nine records of egg-laying span the period May11 to September 10 (); the modal date of laying is June 5...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Fifty-eight records of breeding span the periodMay 1 to August 10 (); the modal date of egg-laying is June 5...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Twenty-eight records of breeding span the periodMarch 21 to May 30 (); the modal date of egg-laying is May 5...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Twenty-three records of breeding are from May 21to July 10 (); the modal date for egg-laying is June 15...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Eight records of breeding span the period May 21to June 20; the modal date for egg-laying is May 25...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Sixty records of breeding span the period May 11to June 20 (); the modal date for completion of clutches is June5...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—The 14 records of breeding are in the period May11 to June 30; the modal date of egg-laying is June 5...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Fifty-seven records of breeding span the periodApril 1 to June 30 (); the modal date for egg-laying is April15...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Sixty-six records of breeding span the periodMay 1 to July 20 (); the modal date for egg-layingis May 25, and a little under 40 per cent of all eggs are laid in the periodMay 21-31...
Richard F. Johnston 「The Breeding Birds of Kansas」
...The modal date for egg-laying is June 5, andthis seems to be a reliable index to the major effort in egg-laying inspite of the small sample...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Nine records of breeding span the period May 11to June 10; the modal date of egg-laying is June 1...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Forty records of breeding span the period April10 to July 20 (); the modal date for egg-laying is May 5...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Twenty-three records of breeding span the periodApril 10 to July 30 (); the modal date for egg-laying is May 5for first nests and June 5 for second nests...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Fifty-one records of breeding span the periodMay 20 to June 30; the modal date of egg-laying is June 5...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Eighty-three records of breeding span the periodMay 11 to July 10 (); the modal date of egg-laying is June 5,and 66 per cent of all eggs are laid between May 21 and June 10...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—The 233 records of breeding span the periodApril 11 to June 30 (); the modal date for egg-laying is May 5,and two-thirds of all eggs are laid between May 1 and May 20...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—The 117 records of breeding span the periodApril 1 to September 20 (); the modal date for laying of firstclutches is May 1, subsequent to which breeding activity is regularbut asynchronous...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Sixteen records of breeding span the period May11 to July 10; the modal date for egg-laying is June 5...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Seven records of breeding span the period May 21to June 30; the modal date of laying seems to be in late May or earlyJune...
Richard F. Johnston 「The Breeding Birds of Kansas」
...—Twelve records of breeding span the period June20 to September 10 (); the modal date for laying is August 5...
Richard F. Johnston 「The Breeding Birds of Kansas」
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