388 Roberts, Colony of Yellow-headed Blackbirds. [^" t k 



Nest LI. May 19th. Basket-like bottom of fine dry material placed 

 since yesterday. 20th and 21st. Abandoned without further work. 



Nest LII. May 20th. A new nest partly built of finer and dryer 

 material than usual. 21st. Well built; still adding some fine wet material 

 around rim; coarse lining in; rim not yet completed. 22d, 23d and 24th. 

 Same. 25th. One egg. 26th. Two eggs. 27th. Three eggs. 28th. 

 Not visited. 29th. Four eggs, one much lighter colored than others. 

 20th to June 5th inclusive. Four eggs. 6th. Not visited. 7th. Two 

 young birds, two eggs; female on nest. 8th. Three young birds, one egg. 

 9th to 13th inclusive. Same. (Examination of colony discontinued on 

 13th.) 



Nest LIU. May 20th. A completed nest, well lined; low down in reeds 

 where water is shallow; must have been overlooked heretofore; empty. 

 21st and 22d. Empty. 23d. Not visited. 24th. Two eggs. 25th. 

 Three eggs. 26th. Four eggs. 27th to June 5th inclusive. Four eggs. 

 6th. Not visited. 7th. Empty; no sign of eggs. 



Nest LIV. May 21st. A few strands of new nest. 22d to 27th. No 

 further work; abandoned. 



Nest LV. May 21st. New beginning since yesterday; a shallow un- 

 shaped bottom; 22d. Walls entirely completed; few strands of coarse 

 lining in place. 23d to 24th. Same; empty. 25th. Fine lining at rim 

 completed; empty. 26th. One egg. 27th. Two eggs. 28th. Not 

 visited. 29th. Two eggs. 30th. Two eggs; included reeds on one side 

 seem to be pulling away from nest. 31st to June 5th inclusive. Two eggs. 

 6th. Not visited. 7th. Nest all torn to pieces and fallen down, possibly 

 due to high wind yesterday; egg shells scattered under nest. 



Nest LVI. May 21st. Two or three coarse wet strands just placed. 

 22d to 26th. Abandoned. 



Nest LVII. May 21st. Large new beginning since yesterday; walls 

 well up but full of holes; wet and dark throughout. 22d. Coarse lining 

 and a few strands of fine lining in. 23d. Nothing more done; empty. 

 24th. One egg. 25th. Two eggs. 26th. Three eggs. 27th. Four 

 eggs. 28th. Not visited. 29th to June 5th inclusive. Four eggs. 6th. 

 Not visited. 7th. Three young birds, one egg. 8th. Four young birds. 

 9th. Two young birds. 10th. Two young birds. 11th. Empty; no 

 sign of nestlings. 



Nest LVIII. May 23d. Cup-shaped bottom not seen yesterday. 

 24th. Same. 25th. Walls well up; few strands of coarse lining in place; 

 wet and soggy. 26th. Coarse, and little of fine lining in place. 27th. 

 Same. 28th. Not visited. 29th. Two eggs. 30th. Three eggs. 31st. 

 Four eggs. June 1st to 4th inclusive. Four eggs. 5th. Three eggs, no 

 sign of fourth. 6th. Not visited. 7th. Empty; no sign of eggs. 



Nest LIX. May 27th. A few strands of dry material have hung here 

 for a week past but since yesterday a new nest has been started a few 

 inches from these and the walls are about one-half completed; wet and 

 soggy. 28th. Not visited. 29th. Walls completed, almost dry; coarse 



