Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Robert M. Mengel"'
Autor:
Robert M. Mengel, Larry D. Martin
Publikováno v:
Contributions in science. 330:75-85
Autor:
Robert M. Mengel, Larry D. Martin
Publikováno v:
The Auk. 92:137-140
Autor:
Harrison B. Tordoff, Robert M. Mengel
Publikováno v:
The Auk. 68:519-522
Autor:
Loye Miller, Robert M. Mengel, Jane S. Mengel, J. R. Pemberton, Gordon W. Gullion, Robert L. Wisner, Frank Richardson, C. R. B. Combellack, Egmont Z. Rett, Gertrude H. Mead, Ned K. Johnson, Jack R. Grieb, Ronald A. Ryder, Henry E. Childs
Publikováno v:
The Condor. 54:61-68
Autor:
Robert M. Mengel
Publikováno v:
The Auk. 88:88-96
Autor:
Robert M. Mengel
Publikováno v:
The Auk. 69:273-283
DIFFICULTIES in identifying certain Empidonax flycatchers recently led me to survey the literature concerning the molts and plumages of birds of this genus and to examine a large number of specimens. In the course of this inquiry it became evident th
Autor:
Robert M. Mengel
Publikováno v:
Scientific American. 216:155-164
Publikováno v:
The Auk. 89:440-444
Autor:
Robert M. Mengel
Publikováno v:
The Auk. 80:393-395
Autor:
Robert M. Mengel
Publikováno v:
The Auk. 72:308-310