VOL. vr.] NESTLING-CUCKOOS. 331 



and great interest, as it was hatched and reared in a 

 small evergreen in front of the School laboratory door, 

 and was almost touched daily by scores of boys and 

 not found until it had left the nest. Notes have already 

 appeared in British Birds about Numbers 15 and 16 

 in my 1912 list. 



It is remarkable that the percentage of loss should be 

 exactly the same in 1911 and 1912, and tends to show 

 that this high death-rate may be normal. 



YOUNG CUCKOOS, 1911. 



1. In a Pied Wagtail's nest. Removed by rats between 



June 1st and 3rd. 



2. In a Goldcrest's nest. Removed on June 2nd. 



3. Found on June 21st in a Reed-Warbler's nest. Removed 



before June 27th. 



4. In a Pied Wagtail's nest. Removed by a rat soon after 



hatching on June 21st. 



5. Left Sedge-Warbler's nest on June 30th. 



6. Left Hedge-Sparrow's nest on July 3rd. 



7. Ready to leave Bullfinch's nest on July 8th. Left the 



nest alive. 



8. Removed from a Robin's nest on July 4th when 10-11 days 



old. 



9. Left Tree-Pipit's nest on July 14th or 15th. 



10. Left Linnet's nest on July 20th. 



11. Found killed and partly eaten in a Hedge-Sparrow's 



nest on July 20th. 



12. Left Hedge-Sparrow's nest on July 25th. 



Numbers 1, 2, 4 were pointed out to me by Mr. H. S. 

 Davenport, and it was a great disappointment when 

 number 2 was taken. Number 8 was probably removed 

 by a stoat. 



The total number of young birds observed in the nest 

 in 1911 was twelve, of which six, or fifty per cent., came 

 to untimely ends. 



1912. 



1. Hatched on May 29th in a Common Whitethroat's nest. 

 Died from natural causes (possibly apoplexy) on 

 June 11th. It was exceedingly fat but rather backward 

 in feathering, as it had not been able to dispose of the 



