The Oologists' Record, March 1, 1923. 21 



Frequently eggs of the rightful owner, and occasionally one or 

 more of the parasitic eggs, showed damage by birds' beak ; and some 

 of these were in the nest as well as some tossed out upon the ground 

 by either the Cowbird or rightful owner. 



NOTES ON SOME EGGS FROM BRAZIL. 



By The Editor. 



A box of eggs just received from the State of Minas, Brazil, 

 contains a few things worth recording. 



In a series of ten sets of the Tico-tico or Chingolo Bunting, 

 Brachyspiza pileata [Bodd.), only one set had escaped the attention 

 of the local race of Cowbird, Molothrus bonariensis {Gm.). Two 

 sets each contain three Cowbird's eggs and five sets each contain 

 two. In some cases a Cowbird seems to have laid twice in the 

 same nest, but in one case of three all appear to be from different 

 birds. The erythristic type of Cowbird egg is well represented 

 in this series. 



The Cowbird also victimizes Coryphospingus cucullatns, one 

 set out of three containing two Cowbirds' eggs. 



A set of three eggs attributed to Cyanocompsa cyanea (L.), a 

 new Finch egg for our collection, are some of the most beautiful 

 eggs we have seen. They are deeply marked with warm brick-red 

 at the larger ends, the colour being thickest there and shading off 

 to mere splashes at the smaller end. Holding them to the light, 

 we can detect no suspicion of green or blue ; yet Nehrkorn, who had 

 an egg laid in captivity, describes them as bluish grey with fine 

 grey markings over the whole surface. He gives the measurements 

 as 22-5x15 mm., while the three eggs just received are approxi- 

 mately 24x18, 24x17 and 23x17 mm. respectively. We must 

 try and secure a skin for certain identification. 



There is a fine pair of Polyboriis tharujs, with pin-hole bores, 

 while two pairs of Catharistes atratiis hrasiliensis each contain a 

 finely marked specimen, one being exceptional in this respect, 

 but the second egg of each set is poorly marked. Two sets of 

 Milvago chimachima recall some types of the Honey Buzzard. 



A c/2 of Astur magnirostris was found in September in a tree 

 very hard to climb. They are very oval in shape and very stained, 

 possibly from nest material. No doubt, originally they were 

 dirty white with scattered umber markings at one end. Approxi- 

 mate measurements, 45x37 and 44x36 mm. 



