ring；　supperless；　to　their　perch。
  In　the　dark　of　midnight　one　may　sometimes　hear　the　white…throat　softly　singing　in　its　dreams。
  GREEN；　GREENISH　GRAY；　OLIVE；　AND　YELLOWISH　OLIVE　BIRDS
  Tree　Swallow　　　Ruby…throated　Humming…bird　　　Golden…crowned　Kinglet　　　Ruby…crowned　Kinglet　　　Solitary　Vireo　　　Red…eyed　Vireo　　　White…eyed　Vireo　　　Warbling　Vireo　　　Ovenbird　　　Worm…eating　Warbler　　　Acadian　Flycatcher　　　Yellow…bellied　Flycatcher　　　Black…throated　Green　Warbler
  Look　also　among　the　Olive…brown　Birds；　especially　for　the　Cuckoos；　Alice's　and　the　Olive…backed　Thrushes；　and　look　in　the　yellow　group；　many　of　whose　birds　are　olive　also。　See　also　females　of　the　Red　Crossbill；　Orchard　Oriole；　Scarlet　Tanager；　Summer　Tanager。
  GREEN；　GREENISH　GRAY；　OLIVE；　AND　YELLOWISH　OLIVE　BIRDS
  TREE　SWALLOW　（Tachycineta　bicolor）　Swallow　family
  Called　also：　WHITE…BELLIED　SWALLOW
  Length　　5　to　6　inches。　A　little　shorter　than　the　English　　　sparrow；　but　apparently　much　larger　because　of　its　wide　wing　　　spread。　Male　　Lustrous　dark　steel…green　above；　darker　and　shading　into　　　black　on　wings　and　tail；　which　is　forked。　Under　parts　soft　　　white。　Female　　Duller　than　male。　Range　　North　America；　from　Hudson　Bay　to　Panama。　Migrations　　End　of　March。　September　or　later。　Summer　resident。
  〃The　stork　in　the　heaven　knoweth　her　appointed　times：　and　the　turtle　and　the　crane　and　the　swallow　observe　the　time　of　their　coming。〃　　Jeremiah；　viii。　7。
  The　earliest　of　the　family　to　appear　in　the　spring；　the　tree　swallow　comes　skimming　over　the　freshly　ploughed　fields　with　a　wide　sweep　of　the　wings；　in　what　appears　to　be　a　perfect　ecstasy　of　flight。　More　shy　of　the　haunts　of　man；　and　less　gregarious　than　its　cousins；　it　is　usually　to　be　seen　during　migration　flying　low　over　the　marshes；　ponds；　and　streams　with　a　few　chosen　friends；　keeping　up　an　incessant　warbling　twitter　while　performing　their　bewildering　and　tireless　evolutions　as　they　catch　their　food　on　the　wing。　Their　white　breasts　flash　in　the　sunlight；　and　it　is　only　when　they　dart　near　you；　and　skim　close　along　the　surface　of　the　water；　that　you　discover　their　backs　to　be　not　black；　but　rich；　dark　green；　glossy　to　iridescence。
  It　is　probable　that　these　birds　keep　near　the　waterways　because　their　favorite　insects　and　wax…berries　are　more　plentiful　in　such　places：　but　this　peculiarity　has　led　many　people　to　the　absurd　belief　that　the　tree　swallow　buries　itself　under　the　mud　of　ponds　in　winter　in　a　state　of　hibernation。　No　bird's　breathing　apparatus　is　made　to　operate　under　mud。
  In　unsettled　districts　these　swallows　nest　in　hollow　trees；　hence　their　name；　but　with　that　laziness　that　forms　a　part　of　the　degeneracy　of　civilization；　they　now　gladly　accept　the　boxes　about　men's　homes　set　up　for　the　martins。　Thousands　of　these　beautiful　birds　have　been　shot　on　the　Long　Island　marshes　and　sold　to　New　York　epicures　for　snipe。
  RUBY…THROATED　HUMMING…BIRD　（Trochilus　colubris）　Humming…bird　　　Family
  ＇Called　also　RUBY…THROATED　HUMMINGBIRD；　AOU　1998＇
  Length　　3。5　to　3。75　inches。　A　trifle　over　half　as　long　as　the　　　English　sparrow。　The　smallest　bird　we　have。　Male　　Bright　metallic　green　above；　wings　and　tail　darkest；　with　　　ruddy…purplish　reflections　and　dusky…white　tips　on　outer　　　tail　quills。　Throat　and　breast　brilliant　metallic　　red　in　one　　　light；　orange　flame　in　another；　and　dusky　orange　in　another；　　　according　as　the　light　strikes　the　plumage。　Sides　greenish；　　　underneath　lightest　gray；　with　whitish　border　outlining　the　　　brilliant　breast。　Bill　long　and　needle…like。　Female　　Without　the　brilliant　feathers　on　throat；　darker　gray　　　beneath。　Outer　tail…quills　are　banded　with　black　and　tipped　　　with　white。　Range　　Eastern　North　America；　from　northern　Canada　to　the　Gulf　　　Of　Mexico　in　summer。　Winters　in　Central　America。　Migrations　　May。　October。　Common　summer　resident。
  This　smallest；　most　exquisite　and　unabashed　of　our　bird　neighbors　cannot　be　mistaken；　for　it　is　the　only　one　of　its　kin　found　east　of　the　plains　and　north　of　Florida；　although　about　four　hundred　species；　native　only　to　the　New　World；　have　been　named　by　scientists。　How　does　it　happen　that　this　little　tropical　jewel　alone　flashes　about　our　Northern　gardens？　Does　it　never　stir　the　spirit　of　adventure　and　emulation　in　the　glistening　breasts　of　its　stay…at…home　cousins　in　the　tropics　by　tales　of　luxuriant　tangles　of　honeysuckle　and　clematis　on　our　cottage　porches；　of　deep…cupped　trumpet…flowers　climbing　over　the　walls　of　old…fashioned　gardens；　where　larkspur；　narcissus；　roses；　and　phlox；　that　crowd　the　box…edged　beds；　are　more　gay　and　honey…laden　than　their　little　brains　can　picture？　Apparently　it　takes　only　the　wish　to　be　in　a　place　to　transport　one　of　these　little　fairies　either　from　the　honeysuckle　trellis　to　the　canna　bed　or　from　Yucatan　to　the　Hudson。　It　is　easy　to　see　how　to　will　and　to　fly　are　allied　in　the　minds　of　the　humming…birds；　as　they　are　in　the　Latin　tongue。　One　minute　poised　in　midair；　apparently　motionless　before　a　flower　while　draining　the　nectar　from　its　deep　cup　　though　the　humming　of　its　wings　tells　that　it　is　suspended　there　by　no　magic　　　the　next　instant　it　has　flashed　out　of　sight　as　if　a　fairy's　wand　had　made　it　suddenly　invisible。　Without　seeing　the　hummer；　it　might　be；　and　often　is；　mistaken　for　a　bee　improving　the　〃shining　hour。〃
  At　evening　one　often　hears　of　a　〃humming…bird〃　going　the　rounds　of　the　garden；　but　at　this　hour　it　is　usually　the　sphinx…moth　hovering　above　the　flower…beds　　the　one　other　creature　besides　the　bee　for　which　the　bird　is　ever　mistaken。　The　postures　and　preferences　of　this　beautiful　large　moth　make　the　mistake　a　very　natural　one。
  The　ruby…throat　is　strangely　fearless　and　unabashed。　It　will　dart　among　the　vines　on　the　veranda　while　the　entire　household　are　assembled　there；　and　add　its　hum　to　that　of　the　conversation　in　a　most　delightfully　neighborly　way。　Once　a　glistening　little　sprite；　quite　undaunted　by　the　size　of　an　audience　that　sat　almost　breathless　enjoying　his　beauty；　thrust　his　bill　into　one　calyx　after　another　on　a　long　sprig　of　honeysuckle　held　in　the　hand。
  And　yet；　with　all　its　friendliness　　or　is　it　simply　fearlessness？　　　the　bird　is　a　desperate　duellist；　and　will　lunge　his　deadly　blade　into　the　jewelled　breast　of　an　enemy　at　the　slightest　provocation　and　quicker　than　thought。　All　the　heat　of　his　glowing　throat　seems　to　be　transferred　to　his　head　while　the　fight　continues；　sometimes　even　to　the　death　　a　cruel；　but　marvellously　beautiful　sight　as　the　glistening　birds　dart　and　tumble　about　beyond　the　range　of　peace…makers。
  High　up　in　a　tree；　preferably　one　whose　knots　and　lichen…covered　excrescences　are　calculated　to　help　conceal　the　nest　that　so　cleverly　imitates　them；　the　mother　humming…bird　saddles　her　exquisite　cradle　to　a　horizontal　limb。　She　lines　it　with　plant　down；　fluffy　bits　from　cat…tails；　and　the　fronds　of　fern；　felting　the　material　into　a　circle　that　an　elm…leaf　amply　roofs　over。　Outside；　lichens　or　bits　of　bark　blend　the　nest　so　harmoniously　with　its　surroundings　that　one　may　look　long　and　thoroughly　before　discovering　it。　Two　infinitesimal；　white　eggs　tax　the　nest　accommodation　to　its　utmost。
  In　the　mating　season　the　female　may　be　seen　perching　　a　posture　one　rarely　catches　her　gay　lover　in　　preening　her　dainty　but　sombre　feathers　with　ladylike　nicety。　The　young　birds　do　a　great　deal　of　perching　before　they　gain　the　marvellously　rapid　wing…motions　of　maturity；　but　they　are　ready　to　fly　within　three　weeks　after　they　are　hatched。　By　the　time　the　trumpet…vine　is　in　bloom　they　dart　and　sip　and　utter　a　shrill　little　squeak　among　the　flowers；　in　company　with　the　old　birds。
  During　the　nest…building　and　incubation　the　male　bird　keeps　so　aggressively　on　the　defensive　that　he　often　betrays　to　a　hitherto　unsuspecting　intruder　the　location　of　his　home。　After　the　young　birds　have　to　be　fed　he　is　most　diligent　in　collecting　food；　that　consists　not　alone　of　the　sweet　juices　of　flowers；　as　is　popularly　supposed；　but　also　of　aphides　and　plant…lice　that　his　　proboscis…like　tongue　licks　off　the　garden　foliage　literally　like　a　streak　of　lightning。
  Both　parents　feed　the　young　by　regurgitation　　a　process　disgusting　to　the　human　observer；　whose　stomach　involuntarily　revolts　at　the　sight　so　welcome　to　the　tiny；　squeaking；　hungry　birds。
  RUBY…CROWNED　KINGLET　（Regulus　calendula）　Kinglet　family
  Called　also：　RUBY…CROWNED　WREN；　RUBY…CROWNED　WARBLER
  Length　　4。25　to　4。5　inches。　About　two　inches　smaller　than　the　　　English　sparrow。　Male　　Upper　parts　grayish　olive…green；　brighter　nearer　the　　　tail；　wings　and　tail　dusky；　edged　with　yellowish　olive。　Two　　　whitish　wing…bars。　Breast　and　underneath　light　yellowish　gray。　　　In　the　adult　male　a　vermilion　spot　on　crown　of　his　ash…gray　　　head。　Female　　Similar；　but　without　the　vermilion　crest。　Range　　North　America。　Breeds　from　northern　United　States　　　northward。　Winters　from　southern　limits　of　its　breeding　range　　　to　Central　America　and　Mexico。　Migrations　　October。　April。　Rarely　a　winter　resident　at　the　　　North。　Most　common　during　its　migrations。
  A　trifle　larger　than　the　golden…crowned　kinglet；　with　a　vermilion　crest　instead　of　a　yellow　and　flame　one；　and　with　a　decided　preference　for　a　warmer　winter　climate；　and　the　ruby…crown's　chief