OKLAHOMA ACADEMY OF SCIENCE 62> 



TABLE IL 



Morning and Evening Weights in Grams of D. 



Nov. 17-23, 2 months old. Dec. 28-31, 3 months old. 



99.2 107.0 7.7 98.4 107.3 8.9 



D. in December, when 3 months old and F. in November,, 

 when aljout 4 months weighed almost the same ; exactly the same 

 in the morning — 98.4g — but during the day F. gained 0.6g. more 

 than D. Curiously enough, D. weighed slightly more at 2 months 

 than at 3, for at the former time his morning weight averaged 

 99.2g. F. on the other hand, had grown 6.8g. during the first 

 four weeks of December. It seems surprising that these birds 

 should gain from 7.8 to 9.7 per cent of their weight each day and 

 then lose it all during the night. F. gained 9.7 per cent of his 

 own weight during November on an average each test daj', and 

 8.7 per cent in December. D. gained 7.8 per cent of own weight 

 during November each test day and 9 per cent a day during the 

 Decemlaer tests. 



Table III gives the results of four feeding tests in which 

 bread and milk, grain and seeds were used, and six in which 

 grain and seeds alone were given to the birds. 



TABLE III. 

 Amount in Grams Eaten by One Mourning Dove in One Day 



Average 5.0 9.6 14.6 Av. 11.8 



*These tests were on F. alone; in all the others both birds parti- 

 cipated and the results were divided bv two. 



