482 lUlJDS I'KOM XK'ARAGUA AND COSTA HICA KICHMOND. 



Family TrHDID.E. 

 1. Tiudus nuistelinus (iiiiol. 

 Heard several times on the Eseoiulido; first noted November 7. 



2. Tiudus ustiilatiis svraiusouii (Cab.). 

 Ouo sliot Oetober .'). A large tliglit occurred on llie 1 ttli. 

 3. Meriila giayi (Honaii.). 



Common on tlie Eseoiidido and also observed at Greytown. Its 

 son.ii' is not unlike that of the American l\obin {^^crula mipratorid), 

 although somewhat inlerior. On the l'iScondi(h) the banana i>lantations 

 are its favorite haunts, and it frequently places its nest in the bunches 

 of fruit, occasioually building in the space at the junction of a leaf 

 with the stem of the plant. A nest secured July 1 resembled that ol 

 71/. migratori(( in having the walls Avell i>lastered with mud. It con- 

 tained two fresh eggs, measuring 1.00 by 0.7S, and 1.1 1 by 0.70; pale 

 bluish gray, spotted and blotched with reddish-brown. 



Two young birds Just able to fly were Ibund June 18. 



It is interesting to note that in the tropics numy species lay but two 

 eggs. The domestic fowls are not as prolific as in the north ap- 

 j)areutly,and their eggs are small-sized. 



Family SYLYIID^. 

 4. Polioptila biliueata (Bonap.). 

 Not very common on the Escondido and at Oreytown. 



Family ]\IIMID.E. 

 5. Galeoscoptes caroliiieiiBis ^Linu.). 

 Eather common ; observed from October 28 to April 17. 



Family TROGLODYTID.E. 

 6. Henicorhina prostheleuca (!Scl.). 



A])iiarentlynot common. The bird skulks close to the grouml in the 

 thick underbrush of the forest and is <]uite shy. 



7. Thiyophilus costaiiceiisis Sliaijx . 



Common at (hey town and on the Fscondido, also ob.servcd on the 

 Rio Frio. It is most abundant during the winter months and possibly 

 may not occur during the breeding season; at any rate, it escaped my 

 notice during the early summer, and it was not until .Inly that the 

 birds became cons])icnous through their loud but rather nutnotitnous 

 song. They arc mostly cunlined to thickets bordering streams, and 



