Little and Least Terns Breeding on Midway Atoll: <i>Identification, Range Extensions, and Assortative Breeding Behavior</i>

The differencein the color of the primarieso n the Midwayb irds These5 birdsw eres tudiedth oroughlyp,h otographe(dF igures2 -6), and resultedfr om the moree xtensivbel acks hadingto the innerw ebso f the video-recordebdy Pylef rom 20 to 26 Junea, fterw hichh e departedA. [...] n 11 Julyt he Least westerna nd southerns ubspecie(bsr ownia nd mexicanaT).h e amounto f Terns were found on a nest on a berm to the northwest of the basin, and darko n thep rimariesin smallS ternais a ffectedb y thec ombinatioonf a on 14J ulyt he LittleT ernsh adr e-nestedap proximate5ly m to the south complexm olta mongt hesefe atherasn dw ear( Cramp1 985C, handlear nd of the LeastT ern nest. [...] Notet he reduceda reounot f darkt o the innerw ebso f the Midway. [...] T he behavioro f the Midwayb irdsi s alsoo f interesAt. [...] N otet heg rayr umpa ndt ail,c oncolor- ousw itht he resto f the upperpartasn, dt he extensivaer nounot f darkc oloratiotno inner webso f the middlep rirnariesP.h otograpbhy PeterP yle.