The Spring Migration March 1 -- May 31, 1984
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CONTINENTAL SURVEY The Spring Migration March 1 -- May 31, 1984 AbbreviationsFrequently Used in Regional Reports ad.: adult, Am.: American, c.: central, C: Celsius, CBC: Reservoir, not Reservation,R.: River, S.P.: State Park, sp.: Christmas Bird Count, Cr.: Creek, Corn.: Common, Co.: species,spp.: speciesplural, ssp.: subspecies,Twp.: Town- County,Cos.: Counties, eta!.: andothers, E.: Eastern(bird ship, W.: Western(bird name), W.M.A.: Wildlife Manage- name),Eur.: European,Eurasian, F: Fahrenheit,fide:reported ment Area, v.o.: various observers, N,S,W,E,: direction of by, F.&W.S.: Fish& Wildlife Service,Ft.: Fort, imm.:imma- motion, n., s., w., e.,: direction of location, >: more than, <: ture, 1.: Island,Is.: Islands,Isles, Jct.: Junction,juv.:juvenile, fewerthan, +_:approximately, or estimatednumber, c•: male, L.: Lake,m.ob.: many observers, Mt.: Mountain,Mts.: Moun- 9: female,0: imm. or female,*: specimen,ph.: photographed, tains, N.F.: National Forest, N.M.: National Monument, •-: documented,ft: feet, mi: miles, m: meters, km: kilometers, N.P.: National Park, N.W.R.: Nat'l Wildlife Refuge, N.: date with a + (e.g., Mar. 4 +): recordedbeyond that date. Northern(bird name), Par.: Parish,Pen.: Peninsula,P.P.: Pro- Editorsmay alsoabbreviate often-cited locations or organiza- vincial Park, Pt.: Point, not Port, Ref.: Refuge, Res.: tions. NORTHEASTERN MARITIME REGION /Blair Nikula Althoughthe diversityin this Regioninvariably precludes any con- sensusamong its manyobservers, rarely does a seasonevoke such an extremedivergence of opinionsas did the springof 1984. Comments rangedfrom "one of thebest we everhad" to "a silentspring." This feast-to-faminesituation defies explanationand appearsunrelated to local variationsin the weather, which was fairly uniform acrossthe Region:cold, very wet andgenerally unfavorable, both for migration and for migration-watchers. Followingan exceptionallymild spellin late Februaryand the resul- tantpremature influx of blackbirdsand other early migrants, March was usheredin by below-normalcold thatpersisted, with only brief excep- tions,most notably March 21-24, throughthe end of themonth. In fact, March temperaturesin Bostonaveraged 5.2øF colderthan thoseof February(!)and two majorstorms brought as much as 30 inchesof Sl•OW to portionsof northernNew England.Not surprisingly,by month'send O iC'E A N migrationhad fallen well behindschedule. The sub-partemperatures persistedthrough much of April (2.6ø belownormal for themonth in Boston)accompanied by above-normalrainfall and, whilea few species Poln! managedto appearon time, the arrivalof mostremained retarded by a week or more. Stormsof southerlyorigins swept through the Region April 5-6, 15-16and 24-25, bringingwith theman amplenumber of the typicalApril overshoots,although totals fell far shortof last year's recordedtheir peak activity on May 22 when340 birdswere handled. recordflights. Indigo Buntings, as usual,led thecharge, followed by a The warmspell lasted through the 27th, but thenthe skiesopened and well-above-averagenumber of Blue Grosbeaks. copiousrainfall across New Englandthe last four days of May resulted A briefsurge of warmair at theend of April broughta smallflurry of in severeflooding in many areasand seriouslyimpacted much of the migrantactivity, but the cool, excessivelywet conditionsreturned in nestingactivity underway at that time. earlyMay andcontinued with only momentary spells of relief(primarily It appearsthe northwardrange extension undergone by a numberof May 11-14)through the 18th.Finally, the weather broke May 19and the essentiallysouthern species over the last two-to-three decades may have first significantsouthwest winds of the seasongenerated the only Re- abated,at leasttemporarily. Species such as the "southern" herons, gionwidewave of note. From Connecticutto Nova Scotia, observers Chuck-will's-widow, Red-bellied Woodpecker, Tufted Titmouse, found good,although generally unspectacular, concentrations of war- Blue-grayGnatcatcher, Northern Mockingbird and Northern Cardinal blers and othermigrants May 19-22. The ManometBird Observatory haveall beenlightly reported at the northernedges of theirrespective Volume38, Number5 883 rangesrecently Whetherthese species have reached their "limits" in Sable I , N S , in April (IAM) At the other extreme, notableinland the Region, or are merelyexhibiting a temporaryresponse to three birdsincluded single Great Egrets in E. Conway,N.H., May 2-31 (B successivecolder-than-normal springs, remains to be seen.Conversely, Robinson)and Manchester,N.H., May 13 (M. Martin), and single a few species,such as Turkey Vulture, KentuckyWarbler and Blue GlossyIbises in Wentworth,N.H., Apr. 6 (E. Burke)and S. Windsor, Grosbeak,have continuedtheir northwardexpansions. Conn., May 19 PJD). A GreatEgret was early in Chatham,Mass., Mar Genuinerarities were few and far between,although it shouldbe 3-12 (fide BN). notedthat severalspecies that were almostunknown in springa few In addition to those noted above, extralimital herons, all in Nova yearsago (e.g., LesserBlack-backed Gull, Forster'sTern, Clay-colored Scotia,included 15 SnowyEgrets, three Little Blue Herons,two Tricol- Sparrow,Yellow-headed Blackbird) are now regularlyreported during oredHerons, two CattleEgrets, and two Green-backedHerons, plus two thisseason and no longer merit "bold-facing." For those keeping score, GlossyIbises (fide IAM). A Little Blue Heronwas also reported from the seasonnetted three state/provincial firsts, one of whichwas also new MiquelonMay 28 (RE). Certainlythe preeminentwading bird of the to the Region.Newfoundland tailed to live up to its developingreputa- seasonwas a White-facedIbis, carefullystudied among nine Glossies tion as "Attu East," perhapsdue to ratherlimited coverage there this in Essex,Mass., Apr. 24-27(?RAF et al.). Diagnosticfeatures noted spring(BMc). Understandably,observers in that provincemay have werea brightred iris, red "knees" anda ¬ inch-widecrescent of white neededa rest followinglast fall/winter'sbonanza! aroundthe eye. The sightingconstitutes a first Regionalrecord, al- ABBREVIATIONS -- G.B. - George'sBank; G.M.N.P. = Gros thoughnot unexpectedin light of the species'regularity in New York Morne Nat'l Park, Nfld.; M.V. = Martha'sVineyard, Mass.; M.B.O. and New Jerseyrecently. =Manomet Bird Observatory,Mass. WATERFOWL -- Tundra Swans were found in Massachusetts at LOONS, GREBES-- A breeding-plumagedArctic Loonwas a sur- RutlandApr. 2 (ML, SC) andSpringfield Apr. 9 (B. Kinnery)and an prisingfind at Manomet,Mass., May 27-29 (J. Loughlin).Observers exceptionallylate individual was reported from Lincolnville,Me., May onceagain documented a loon migration past Pt. Judith,R.I., although 28 (J. Despres,fide WCT). Modestnumbers of SnowGeese included numberswere well belowthe last 2 seasonaltotals. On 4 datesin May 1500 over Egremont,Mass., Apr. 6 (D. Spurr), 500 overGreenwich, (9,12,23 & 24), 565 Corn.Loons were tallied, with a peakof 186May Conn., Apr. 9 (fide TB) anda maximumof 400 at PlmnI., Mass., in 12 (RLF, RACet al.), the sameday that Red-throatedLoons also April (fi'deRPE). Significantconcentrations of Brantwere in Wellfleet, peaked at 46 birds. Mass., Mar. 22 when 2500 were estimated(P. Trull) and in Westport, Stormyweather generated a remarkable grounding of grebesinland in Conn., where2000-3000 were movingin the eveningon the ratherlate w MassachusettsApr. 15. At CongamondL., in Southwick,44 Horned date of May 20 (DV). "Eurasian" Green-wingedTeal Regionwide and69 Red-neckedgrebes on thatdate (SK) exceededmost totals from totaledthree or fourindividuals while Eur. Wigeonnumbered six birds s coastallocations this spring. The observernoted that most of theRed- In Newfoundland,10 + pairsof Am. Wigeonduring the period (BM) neckeds,but noneof theHorneds, were in breedingplumage. Along the wasindicative of thatspecies' increase in n. portionsof theRegion, and coast,Horned Grebes continued to be very scarcewith 46 at Plum I., in the sameprovince, a pair of N. Shovelersin theCodroy Valley May Mass., Apr. 17 (J. Grugan)the largestconcentration reported. Red- 20 (BM) anda pair of LesserScaup at G.M.N.P., May 7-9 (BM) were neckedGrebes were scarce again also, particularly in s. portionswhere considerednoteworthy. the highestcount was a mere47 at Gloucester,Mass., Apr. 7 (C. Typicallylate King Eiderswere singlesin Marion. Mass., Apr. 23 Floyd). In Nova Scotia,an influx (from where?)of Red-neckerswas (RAF) and GreenwichPt., Conn., Apr. 26 (JZ), andthree on M.V , notedin mid-April, when 150+ wereat Cow Bay Apr. 11 (FLL), 80 at May 14-19(W. Manteret al.). At Isleau Haut, Me., theannual Harle- easternPassage Apr. 13(IAM), and150 were tallied at 4 otherlocations quinDuck census Mar. 25 recorded200 + birds(PDV). Scotersmigrat- in the province.Still farthern., on St. Pierre, 427 Mar. 6 (fide RE), ingpast Pt. Judith,R.I., Apr. 21 numbered1300 Black, 1300 Surf and althoughimpressive compared with elsewhere in theRegion, was fewer only 40 White-winged(RLF), while at GreenwichPt., Conn.,on the thanhalf of the 883 countedthere last spring(not previouslyreported). eveningsof Apr. 26 & 27, 1111 White-winged,one Black (and no WesternGrebes (morph not specified)were at Revere,Mass., Apr. 25- Surfs)were recorded, all movingE to W (JZ et al.). The watersaround 27 (M. Vaughnet al.) and NantucketI., Mass., Apr. 26 (E & C CapeCod havehosted increasing concentrations of Red-breastedMer- Andrews). gansersin recentyears, perhaps in responseto a spectacularincrease in populationsof the smallfish Ammodytes (sp.), buta countof