228 PROCEEDINGS OF THE :NATI0NAL MUSEUM Vol. 87 



MYIARCHUS TYRANNULUS TYRANNULUS (MUller) 



Muscicapa tyrannulus Muller, Natursystem, Suppl., 1776, p. 169 (Cayenne). 



Recorded as follows: Maracay, October 21 (specimen); Ocumare 

 de la Costa, October 25 to 30 (two specimens); El Sombrero, No- 

 vember 13 to 21 (specimen). Birds seen on the open south slopes 

 below the rain forest at Ranclio Grande on November 4 and 9 are 

 supposed to have been this form, but of this I was not certain. At 

 Maracay they were found in the tops of fair-sized trees in open 

 groves, but in the dry scrub they rested usually on sluuled perches in 

 the larger bushes. I saw them also in the high shade trees over cacao 

 plantations. 



MYIARCHUS TUBERCULIFER TUBERCULIFER (d'Orbigny antl T,af. esnaye) 



Tyrannus tubercvUfer d'Orbigny and Lafresnaye, Synopsis avium, Mag. 

 Zool., vol. 7, cl. 2, 1837, p. 43 (Guarayos, Bolivia). 



One was taken October 21 as it rested on the middle branches of a 

 tree in a grove at La Providencia near Maracay. Another was seen 

 here on November 11. 



NUTTALLORNIS BOREALIS (Swainson): Olive-sided Flycatcher 



Tyrannus borealis Swainson, Fauna Boreali-Americana, vol. 2, 1831 (Fel). 1832), 

 p. 141, pi. 35 (Carlton House, Saskatchewan). 



From November 3 to 10 I saw occasional individuals resting in the 

 dead limbs at the tops of tall trees standing on ridges, where the birds 

 had commanding views over the valleys, or heard their calls as I 

 traveled hidilen mountain trails below. Truly this flycatcher must 

 be a connoisseur of mountain scenery, since similar localities make 

 fav(uite haunts for it on its breeding grounds in the north. The 

 birds are quite feorless, as I shot two parakeets one after the other 

 from a dead tree only a few feet distant from one of these flycatchers, 

 which merely turned its head to watch its larger companions fall. 



A male olive-sided flycatcher taken on November 3 was in good 

 flesh but was not fat. It had already begun the molt and renewal of 

 the inner wing feathers. This specimen measured as follows: Wing 

 107.5, tail G5.8, culmen from base 18, tarsus 15.5 mm. 



Recently van Rossem ^^ has shown that the name Muscicapa meso- 

 leuca Lichtenstein *» that has been attributed by Hellmayr^ to the 

 olive-sided flycatcher in reality is Elaenia mesoleuca of South America, 

 allowing return to the familiar specific name of borealis for the bird 

 here under discussion. 



" Trans. San Diego Soc. Nat. Hist., vol. 7, 1934, pp. 350-352. 



*' Preis-Verzeichniss me.xicanischer Vogel . . . , 1830, p. 2. 



" Field Mu.s. Nat. Hist., zool. ser., vol. 13, pt. 5, 1927, p. 189. 



