Dr. Horsfieltl's Zoological Reicarches, 133 



Ifirge forests I have not observed it Its flight is low and in- 

 terrupted. Wherever it resides, it is a welcome neighbour, in 

 consequence of the peculiarity and pleasantness of its note. This 

 consists of a slow repetition of the five tones of the diatonic 

 scale (C D E F G), which it chants with perfect regularity, se- 

 veral times in succession, and at small intervals of time. The 

 sixth tone is sometimes added ; but as this requires apparently 

 an extraordinary eifort, it is by no means so agreeable to a 

 musical ear as the simple repetition of five notes, wjiich appears: 

 to be the natural compass of the organs of the bird*." 



T' gidaris. T. supra fusca remigibus rectricibusque satu- 

 ratioribus, subtus flavescens lateribus olivaceis, gula pectore- 

 que luteis lineis sagittatis notatis. Burimg-Pudi/ig, of the in- 

 habitants of Sumat|i'a. Motacilla gularis Sir S. Raffles. 



Fam. Sylviai)^. - 



lora. Char. ESSv:iJT.^ltosf7-u)n mediocre, rectum, validi- 

 usculum, oequaliter attenuatum,culmine rotundato. Mandibtda 

 robusta. Tomia dilatata, recta, acuta, diaphana, maxillaria 

 emarginata. Alee breves, obtusse. Cauda mediocris, subro- 

 tundata. 



/ scapzdaris. I. olivaceo-viridi-flava, remigibus nigricanti- 

 bus externe flavido intei'ne albo-marginatis, alis macidis albis 

 confluentibus scapulis parallelis notatis, abdomiue pectoreque 

 flavis. Chectoo, of the Javanese. A bird of social habits, re- 

 sorting to the vicinity of human dwellings. 



Brachypteryx. Char, essent. — ^os^n^wi culmine inter nares 

 carinato lateribus planis apicem versus rotundato lateribus 

 convexis, tomiis subinflexis. Ala brevissimae, obtusae. Cauda 

 mediocris, rotundata. Pedes elongati, debiles ; tarsi graciles, 

 digiti gracillimi imguibus compressissimis hallucis majore. 



B. montana. B. nigricante-caerulea nitore cano, subtus 

 pallidior, abdomine albido, supra oculos macpla alba, dorso 

 alis supra cauda basi hypochondriis tibiisque (mari) badiis. 

 Ketek, of the Javanese. A resident in the forests of Mount 

 Prahu. 



Motacilla speciosa. M. atra, pileo cristato ventre uropygio 

 fascia alarum rectricibus extimis totis, ceteris apicibus niveis, 

 Cauda longissima forficata. — C/icngingi?tg, or Kingking, of the 

 Javanese. Found exclusively near small rivulets, and almost 

 entirely confined to the southern coast of Java. 



Tribus Conirostrps. Fam. CoRvioiE. 

 Pht;cnotrix. Cji^R. gen. -r-i2os//7<7« n[i^ipci'e» valldiim, 



• This is a curious musical fact, but seems to be at vftiiiuuc wjlli the, 

 position of Mr. Blackwail, mpm p. 'i'i. note. — Edit. 



altum, 



