81 



Mh/r parti trAtfe ; tail Hjfht \-.\r\ xru\ . the outer feather darker t..nrd the 



'.i re tkf timtr vrtb it at troy* il>tri,r tlmn the uU-r; lull dull orange, 



the eud thinl blueki-h; tt orange. Ad. in tctnttr. Similar to the above, 



hut head white, rn.-re <>r IWM wanhed with jfruyi-h or |.ttd with black, a 



large black p"t <>I) tin- -i.lr ! tin- hcitil in. i..-.ti_- tlir . \r; hill inivtly black; 



.in-h. /;. Similar to the preoedini;, hut the ha-k and winga more 



Or lOM Ilioltled or w it-lied with liu'lit Lr> ln-h. ulid the tail liiuoh fhorter. 

 I... I.V.H.; \\., 1 . II., 1 ;,... 



Of BON Or ! general distribution throughout North Aiuerii-a, 

 breeding in the eaal ItH'ully tnun Tr\a iionlnvunl thn-u^li tin- .Mi-i.-iiwij.pi 

 V alloy to St. Clair Flat* uml Miuiit<>l>a -ri<ll t'nun l.iiki- Mi-ta-.-ini up- 

 not t-n-i'.liiii; on tin- Atlunt'u- o-ii>t n>rth ..!' N'ir^iniu, t.ut watnlcriiijf 

 ly to Mmwu-humjtto. 



irt"!!. run- and irnx'ulur T V. I.<.ii L ' Inland, rare T. V. in fall. 

 f, of seaweed, tlu^'-. ! .-. .is on a Mi^ht i-l<-\uti..n in ^ru.^y tnarabee. 

 three, very variable, oli\e-gray, or olive bniwni^li u>h\, mom rarely 

 whitish or bulf, hfuvily murki-d with i-hiK-oluU-. 1 >o x 1-30. 



I>r. Hn-wcr, writing of Mr. Riil^wuvV fX|KTii-iici- \\itli this species 

 on ('olil)'s I-liind, N'ir^'iiiia, whtTt- it was fountl Im-cding in nuinU-r>. 

 says: "It was only Irss ahundant than the Amjlicn [= nilnfirn], and 

 (juii.- as numerous as tin- Inrnndo. fr.-.|iu-iiiiiii: <'-i><'cially grassy 

 marshes, in which it nc-sts. Ho found it prt'-finitieiitly a marsh Tern. 

 It nested in company with, or in close proximity to, rolniiirs of the 

 Black-headed Gull. It could be readily distinguished from the Com- 

 mon Tern, which it closely rescmhles when on the wing, hy its grating 

 monotonous note, which very closely n-semolcs one frequently uttered 

 by the Loggerhead Shrike" (B. B., and K.). 



70. Sterna hirundo /./"". C..VM..V TH:N : \\n ->.'- Tn:x; SEA 

 SWALLOW (nee Fitf. 7). A<1. in *inn>n/r. - \\\i\t' top "f tin- houd hln-k 

 and \\injp* pearl -jrniy ; inner iMmh-r of inner \vel. of outer priinanes whitr, 

 it the tij> I thnmt white; l,r.<i*t ami >//y i\h /<irt-irray ; 



(nil white, the outer wehu of the outer feat hers irruy or |>earl-irra> ; )>ill nil at 

 the bane, the end thinl Mack ; feet onmire-reil. .(./. in n-int.r. similar to 

 the above, but front part of tho head and under part* white: hill m.^tly 

 black. 7m. Similar to the preceding, hut the hu.-k more or I.MU;. 

 mottled with liijht bn)wni*h ; lower winir -I'overts slaty irray, ami tail much 

 shorter. I . : ; \V.. 1<> -j.v T.. :>:<0\ Tar.. '7:. ; I'... 1 ". 



'onmion Tern i* clom-ly related to KopterV Tern und alno 

 to the An-tie Tern. Fnin the f..nner it i to be.liMiinruishe.1 l.y tin ..... lor of 

 the lonj; outer tail-feathep*. In the Common Tern the outer web of thaw 

 feathers ia alwa.VH darker than the inner weh; in Fonter' TMII the inner 

 always darker than the outer one. Adult Common Term have the 

 breeit and belly waahed with ptarl-yray, while in Footer'* T rn tl>en perte 

 are pure u 



The Cuiiunon Ttni ditfen from tho Aretii- Teni in havitiir Uic bill tipped 

 7 



