404 Mr. E. Gibson on the Ornithology of [Ibis, 



another instance of a pair (if my correspondent is correct 

 in his identification), the nest of which was obtained on 

 26 November, 1910, J\Ty correspondent's three eggs are 

 pure white and pointed, and measure 25 x 17 mm. 



158. Pitangus bolivianiis (Lafr.). Bienteveo Tyrant. 



I have only a few nesting-notes to add to my former 

 account of this species. To show its familiarity or in- 

 diiference to man, one nest was placed in a small lemon- 

 tree just outside my bedroom window and adjoining the 

 patio; another on a gate-post (far removed from house or 

 tree), where there was considerable traffic. Four nests have 

 come under ray observation, which were built on the ground 

 in the open campo, and, being only ''backed-up'' against a 

 tuft of grass, were naturally very conspicuous ; three of 

 these were close to the woods of the head-station, the fourth 

 only a short distance from an abandoned I'ancho with a con- 

 siderable number of trees. So it is difficult to assign any 

 reason for such a curious departure. 



162. Pyrocephalus rubineus (Bodd.). Scarlet Tyrant. 



I have nothing to add to my own and INIr. Hudson's notes. 

 The year of 1913 (that of biggest flood ever known all over 

 the Province) was marked by a great incursion of this lovely 

 Tyrant. " More abundant and generally distributed than 

 any previous year," I find myself writing at the end of 

 October. Mr. Grant's observations on the moult are 

 interesting. 



The nest and eggs have been fully described. The latter 

 measure 17 x 13 ram. 



170. Tyrannus melancholicus (Vieill.). Melancholy 

 Tyrant. 



On 5 January, 1902, I saw a ])air of this species. In his 

 two visits to Ajo, Mr. Grant chronicles four observed, be- 

 tween 29 December and 12 March, and alludes to its rarity 

 as a visitor. About the raiddle of January 1917, I found a 

 pair frequenting an orchard at the Yngleses head-station. 



