TABLE 22 
Mortality table of nestings of the Prairie Horned Lark for 1926 at Evanston, Ill. 
. * No. of Egg No. of | Nestli Successful 
Nest No Inclusive Dates Eggs Toss Cause Nestlings Bg Cause Nestlings 
L ee 2 2 Sno 0 ) 
2 ea 228. . 2 2 Sno 0 0 
3 April lio Ve ee : Failure to hatch......... : 2 Disease 1 Starvation 1.. 
t Apel 12—May ) j 0 7 
i] April 12—May 4............ fe Or ra aed bio w aed 4 
April 12—April 27 3 UGROOWI vii cose oak ( 
j April 13 MYO cts hited 6 te ee 2 Gtarvation cies cscs 7 
3 April 183—<April Unknown ( 
) April 18—May 7 MR so das bras 0 : 
) April 13—May 0 1 SM WOMION cs kak osc es es 
April 14—May £ Failure to hatch......... 1 WGENOW ss hikes hs 
April 14—May fdas, Roel Tag le nee aon a eee 
3 April 26—May 20 0 
ae 27—May 19 d d 1 Starvation 
ay 83—May 24.............] 1 DEN ss RG LS 
May 7—May 9......-++++- Unknown ( 
May 9—June 2 3 0 
3 May 21—June 12........... Ne Ne ale Gy as pan CER Cee kee 
) May 22-—June 7... ...-¢+95. Kies 5 Unknown 
) May 25—June 17............ Failure to hatch......... Rese) Sodeepaae 
June 9—June 26............ Failure to hatch......... 4 4 1? 0 
2 June 17—July 11............ Br i es eo aa al eed rane 4 1 Unknown 3 
3 June 22—July 5.0... ek Failure to hatch......... 1 Unknown 0 
t June 27—July 12...........> 4 Failure to hatch......... 3 3 Unkuowie 6 oiisie kee be ) 
Total 82 3 9 65 26 39 
| 
*The first date in each case indicates date abe egg is laid, this date is estimated 
Sum geet cent of loss in eggs: is 
cent o nestling loss ng ee od be aoa: 40 
Per cent of loss of whol Beet hatching 
Per cent total loss of 82. eggs: 52.4 
OIT 
T 18 fo “wy ‘poopy ‘suDiy 
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