Evening star., 1928-04-21
BACKGROUND OF EVENTS
BY PAUL J.. COLLINS.

would not survive the birds very long, II
they were killed of
The economic value OF the birds is
not measured by the price per pound OF
dead birds. but by the value per year Of
the service Of the live birds in destroy
ing insects which destroy grain and
/ fruit, and, If left TO multiply. would
soon oyerwheIm all animal life"
Then birds differ from injuns9 No
good injun except a dead one?' Little
/ value Of dead bird in comparison with
q live one boarding on insectS2 What's
million dollars between sport and sur
yiyal OF the ftteSt bird?" vas the ques-
/ ton.
Most of the opposition TO the Nor
beck bill came from Senator King Of
/ Utah. and was based on States rights,
remarked the scientist. But Utah has
erected a monument which commence
rates very great service done there by
+ birds. Where else have monuments
/ testified TO the service of birds or other
/ creatures? Why should Senator King
1 Of Utah forget the gratitude Of his
State TO the birds? Utah was in terri
/ bic distress from 3 gTaSShopper plague.
and somehow the news reached the sea
fowl on the Pacific Coast Then thou
sands and thousands Of seafoEl few
ov-r the Rocky Mountains and cleaned
out those gTaSShOppers. So. before
erecting National monument 70 honor
cur Unknown Soldier, Utah commemo-
rated the birds which ate up the grass
hoppers
You ask the value of our bSrdS9
/ There are 400 species of insects which
I prey on our oak trees Every land plant
/ has an insect pest of its own--the elm
/ has so species OF insects. the hickory
ITO. the locust Al, NAPLES 100. birch
/ los. willow lS6 and the pine 195. Or
/ Hopkins says the total bill for insect
/ injury 20 our forests amounts TO $780,
100000 year-in spite Of the birds
which keep the insects down"
/ The scientist was speaking earnestly
I and he continued.
For centuries il has been recognized
I that birds destroy insects but only II
modern times have scientists under
taken TO gather accurate data by ex-
amining microScopicslly the Stenasehs
OF the birds slain for testing. Birds
gather their prey by different methods.
Flycatchsrs catch their insects IN mid
air, terrestrial birds gather insects
creeping on the ground. while wood
peckeES and certain other birds s.;
/ theirs II the trees
/ Survey has been gathering datA aaoss-
the migration Of birds. The birds fy
from Northern Canada across the
/ Unatad States. clear dOwn "a South
AFRe-.ca~-1nat IS certain varieties
I MAKE that long migration Many Gle
IN their flights. Half million Sosci-
mems have been found hy lighthouse
keepers--the birds had been dazzlsd hy
the lights and have fi0wn into The glass
{ with fatal consequences. Most az the
migratory ai9hf is in the night"
Why ci0 they misvater How do
I they know when and now 60 seek
warmer ellineS~~oE cocleT2" Was the
/ question asked
Ages ago, North America Swaynsed
with noa-nlisrStosy birds whea the
Ice Age approached aud the Arctic
/ tee cap grew SouthWaTC, Ehs hoaas~lc@~
iaG birds were forced hy THE new sea
San. such rs We now call Winter. GO
! 90 southwark. ahead Of che Ice en-
cFoachnaent. The ice approached
ceSecs~~agaln approached SeutnwSrC
and the osrss. eiiagiag by instinct *
the region wherein they had Matched
aew So0ta-~tAsn back sgsey the re-
cedinS ICE sstea were driven south tNs
neS9 season 81 cold weathey~-unt;l
/ through genefssA0gsS. the habit Vas
formed and fxeG, ana when hahgs i
fANeo 1t becomes Instinct,
There Is another theory Some BE-
l5eFe that the natural home Of the birds
was originally IN the South whrnce'
through cveTnSollgcEloN. they weye
f1Feea 10 Sse& eeona tor their overflow
and as tae GLACIAL era eegan 10 pas,
t2ey followed The Teceglng iee-can
0oEtaWard, Net their Winter aAsfiaS
place In the south was still their Aonse
and they retugaed south as seen % ncS-
SlelS, THIS the ogchagd aEs0ie arrives in
tSssaSSsNaaiA IN she first week ef MAJ
/. hug returns south N the migdle ei
July Nersh America mas an ae}nSanee
ot bird t0sa In Summer. e0s the tender
eFratareS must seek mild elsnlSte ra
The WtugSr.
'Rsy<iS ~ Canada flv clear over tAs
United states and Mexico. To = similar
climate ia South America. Rals nos all
Sssec}eS make that taag trip GgoySe
Quail, eaFdsual an0 Carolina wren are
nen~ migratory. ReaSlAsesS FeaAata wiehsa
10 mtleS 0g the neSt where they weFs
hatehed Also meadow -larks. Rss tns
nsghthaW& nseS f,aeo miles In his n,t.
Gfalsea gTNANl North ~ south America.
and the Areeie tern nests as far ncrth
In the Arctic as Is anas solid lard. ard
when It's yoslng hatehed in tfas AFetse,
are grown ssf0ng eraattgh IL A., the
whole family travels tl.eoa u,aleS aoWn
10 the Antarctic continent. III - haagv
naaele Sha& CeWag, ayENi, who aew cSeE
the North NAse last YEAR, may discover
some III his old aeaUAnstaIsSeS at the
South tals next year AT aeaSs al&e psSS
Of an Areste tern las heSn found NktAsN
9As degrees at the Naath Pole. SSoopet
oAt - the snow, THE tsgnS arrive 10 ths
Arctic June ID and start Saasta August
"a. after hatehtng thSsg hTuo9ts la tats
north
viii the M0saSe pass the NeEeeSG
bird pFoteestaM hlta Ia siaae ta eamS0xs
tbs Years AKetle sassas4
That Il 4 naittical sneatians I'm &
scientist cflya