29 Aves. 
Titles. 
5800 
Hay, E. F. A. Birds observed at 
Grindelwald. Zoologist, London, 11 , 
1907 , (73-74). 649 
Headley, F. W. Wind and flight. 
British Birds, I (115-121, 143-146,108- 
173). 650 
Headley. F. W. Partridge carrying a 
young one. British Birds, 1, 1907, 
(190). 651 
Heape, W. Note on the influence of 
extraneous forces upon the proportion 
of the sexes produced by Canaries. 
Cambridge, Proc. Phil. Soc., 14 , 1907, 
(201-205). 652 
Heidrich, Kurt. Die Mund-Schlund- 
kopfhohle der Vogel und ihre Driisen. 
Morph. Jahrb., Leipzig, 37 , 1907, (10- 
69) 2 Taf. 653 
Heinroth, O. llippolais ldppolais in 
the Camaroons in June. J. Ornitli., 
Leipzig, 55, 1907, (156, 157). 654 
Heinroth, O. [Vogelzugsdaten fur Ber- 
lin 1907.] J. Ornith., Leipzig, 55, 1907, 
(475). 655 
Heinroth, O. [Schwanzmauser des 
Baumlaufers.] J. Ornith., Leipzig, 55, 
1907, (623-624). 657 
Held, O. Hydvobates leucorrhous 
(Vieillot) in Mecklenburg. Gustrow, 
Arch. Ver. Natg, 60 , 1906, (84-87). 658 
Hellmayr, C. E. Another contribu- 
tion to the Ornithology of the Lower 
Amazons. I. Nov Zook, Tring, 14 , 
1907, (1-39). 658a 
Hellmayr, C. E. II. Birds from 
Obidos. Nov. Zool., Tring, 14 , 1907, 
(39-40). 659 
Hellmayr, C. E. On a collection of 
birds from Teffo, Rio Solimoes, Brazil. 
Nov. Zool., Tring, 14 , 1907, (40-91). 
659a 
Hellmayr, C. E. On a collection of 
birds made by Mr. W. Hoffmanns on the 
Rio Madeira, Brazil. Nov. Zool., Tring, 
14 , 1907, (343-412). 660 
Hellmayr, C. E. On a new species 
of Paroaria. London, Bull. Brit. Ornith. 
Cl., 19 , 1907, (43). 661 
Hellmayr, C. E. On new species of 
birds from Brazil. London, Bull. Brit. 
Ornith. Cl., 19 , 1907, (51-55). 662 
Hellmayr, C. E. On new species of 
Spine-tailed Swifts from South America. 
London, Bull. Brit. Ornith. Cl., 19 , 1907, 
(62, 63). 663 
Hellmayr, C. E. On new forms of 
South American Birds. London, Bull. 
Brit. Ornith. Cl., 19 , 1907, (74-76). 664 
Hellmayr, C. E. On birds from Mt. 
Hatiaya, Brazil. London, Bull. Brit. 
Ornith. Cl., 19 , 1907, (76). 664a 
Hellmayr, C. E. On a new species of 
Humming Bird from Central Brazil. 
London, Bull. Brit. Ornith. Cl., 21 , 1907, 
(27, 28). 665 
Hellmayr, C. E. Note on T odirostrum 
capitate , Scl. London, Bull. Brit. 
Ornith. Cl., 21, 1907, (28). 665a 
Hellmayr, C. E. Aves fur 1899. 
Jahresbericht. Arch. Natg., Berlin, 67 , 
Bd 2, H. 1, 1901 [1907], (1-132.) 666 
Helm, F. Beobachtungen an einem 
Amselneste. Chemnitz, Ber. natw. Ges., 
16 , (1903-1907), 1907, (1-12). 667 
Helm, F. Das Vogelleben wahrend 
des Winters und Friihlings in dem 
bewaldeten gebirgigen und ebenen was- 
serreichen Teile unseres Vaterlandes. 
Chemnitz, Ber. natw. Ges., 16 (1903- 
1907), 1907, (23-41). 668 
Helm, F. Neuere Beobachtungen 
liber den Herbstzug des Stares ( Sturnus 
vulgaris). Ornis, London, 14 , 1907, 
(544-553). 669 
Henderson, Junius. Nesting of cross- 
bills in Colorado. Auk, Cambridge, 
Mass., N. Ser., 24, 1907, (440-442). 670 
Henderson, Junius. Colorado notes. 
Condor, Pasadena, Cal., 9 , 1907, (198). 
671 
Henderson, Junius. An early Colorado 
naturalist — Denis Gale. Boulder, Univ. 
Colo. Stud., 5 , 1907, (25-34), portrait. 
672 
Henderson, T. Grey Plover, Wood- 
cock and Great Crested Grebe in 
Shetland. Ann. Scot. Nat. Hist., Edin- 
burgh, 1907 , (117-118). 673 
Hennemann, W. Mitteilungen liber 
Rackelwild, Kreuzschnabel, Zaunam- 
mern, Einspiegelige Raubwiirger und 
Schujarzbrauige Schwanzmeisen aus dem 
Sauerlande. Munster, Jahresber. Prov- 
Ver. Wiss., 35 , (1906-07), 1907,(64-66). 
674 
Hennemann, W. Ornithologische Beob- 
achtungen im Sauerlande im Jalire 
1905. Ornith. Jahrb., Ilallein, 18 , 1907, 
(30-37). 674a 
