OCR Text |
Show MR. O. SALVIN ON THE BIRDS OF VERAGUA. 131 The _M.-graphical position of the portion of Veragua we are now considering, situated as it is between Panama and Costa Rica, certainly suggests that its ornithological fauna would consist of species belonging to each fauna, with the addition of some few species peculiar to the district. Such appears to be actually the case. Rather more than one-half the birds are also found in Costa Rica, while rather less than two-thirds are found on the Panama Railway. About one in ten has not been hitherto seen beyond its limits. Rather less ' -n three in seven extend beyond Panama into the southern con-e America, while three in seven extend northward into Gua-i •**•. or the northern continent of America. -*s show that this district most resembles the vegards its birds, that it has a less strong affi- "*t out of the wide-ranging species a rather ore northern regions than to southern. ' *-*-f*lv the birds of this district +he balance * forms, OI the two logists to ti separating Co. continent, is the mouth of the Baj Regarding Costi indications, in the| existed between coronata of that this district, vi*,. to the northward of the h n ™ ^ shore of the lake of Nicaragua anTNtj to the peculiarities of the Central-AmerMI to the separation indicated between Costa ±?TCTB continent, but when the more northern strait, wliew |