546 Recently published Ornithological Works. 
Mexican hot-lands, and has, as is well-known, eccentric 
breeding-habits, hut not those of our European Cuckoo. 
Several females lay their eggs in one nest, in which they sit 
in company, while, there not being room for all of them at 
once, the excluded ones perch upon the margin of the nest 
and wait their turn to “ go on.” 
On the ride from Tehuantepec to Oaxaca an abundance 
of bird-life was met with. Long-tailed Parrakeets whirled 
round in swarms, and the short-tailed Lories climbed 
about in pairs, while little Inca Doves and brown Pigeons, 
Grackles and Cassiques, Hawks and Cormorants, Herons, 
and black and red-faced Vultures were also to be seen.” 
But the pretty long-tailed blue and white Jays—well-named 
Calocitta formosa —were the favourites, and watched the 
party from the overhanging branches with their top-knots 
well curved forwards (as shown in an accompanying illus¬ 
tration), and were so confiding as to whistle back when 
whistled to. It is new to us that the Mexican Hang-nests 
(.Icterus ) have taken to tying their pendent houses to the 
telegraph-wires (p. 207), and that Hirundo callorhina (what¬ 
ever that may be ?) places its nests on the eaves of the old 
houses. But the reader of Dr. Gadow’s volume will find 
these and other interesting facts described in its pages, 
and we strongly recommend its perusal, although we think 
that a little more ornithology might have been well intro¬ 
duced into it. 
61. Godman’s ( Monograph of the Petrels.’ 
[A Monograph of the Petrels (Order Tubinares). By F. DuCane 
Godman, D.C.L., F.R.S., President of the British Ornithologists’ Union. 
With hand-coloured plates by J. G. Keulemans. Part IV. Witherby 
& Co., April 1909.] 
In January (see above, p. 175) we noticed the issue of 
Part III. of this important work. We have now to record 
the publication of the fourth part, which continues the 
account of the numerous species of (Estrelata until its 
termination with (E . axillaris of the Chatham Islands. 
Altogether thirty-two species of this genus are recognised, 
of which all but five are figured in Mr. Keulemans's best 
