Mountains act as a barrier and perhaps a north-south guide 
during migration (Braun 1979), 
New Mexico (n = 199).—In New Mexico, only 58 % of 
the harvest originated from within the State. The other, 
more northern States of the West-CMU provided 21% of 
the New Mexico harvest, and Mid-CMU States contributed 
nearly as much with 18%. The WMU contributed more 
to the harvest in New Mexico than to any other State in 
the CMU but was less than 3%. 
Oklahoma (n = 227),—Ninety percent of Oklahoma’s 
dove harvest consisted of birds originating within the State. 
The Mid—CMU States contributed 5% , and the East-CMU 
States provided 4%. The WMU, West-CMU, and EMU 
combined contributed less than 1% of the harvest. 
Arkansas (n = 415).—Ninety-four percent of the 
Arkansas harvest originated from within the State, 4% 
came from adjacent EMU States, and 2% came from the 
East-CMU., No birds originating from areas west of the 
East-CMU tier were harvested in Arkansas, 
North Texas (n = 1,198), — About 59% of the harvest 
in North Texas originated from within North Texas. Nearly 
30% of the harvest came from other Mid-CMU States; only 
3% came from west of the Mid-CMU and 7% from east 
of this tier. Oklahoma and Kansas were the main out-of- 
State contributors to the North Texas harvest with about 
13 and 6%, respectively. 
South Texas (n = 780).—Less than half (49%) of the 
South Texas harvest originated from within South Texas. 
Other Mid—CMU States contributed 35% of the harvest; 
the East-CMU contributed 12% and the EMU 4%. Only 
1% of the South Texas harvest was contributed by States 
west of the Mid-CMU. In contrast to the North Texas kill, 
a greater proportion of the harvested birds in South Texas 
originated from northern and eastern States. This probably 
reflects the later hunting season dates in South Texas, which 
allowed time for birds from the north to migrate into the 
harvest area. 
Derivation of the Harvest— Southern Zone (All Doves) 
The derivation data for all doves harvested in Mexico and 
Central America are summarized in Tables A-51, A-57, and 
A-60 and are discussed in detail below. 
Mexico (n = 902) 
Of the 902 direct recoveries in Mexico from doves banded 
in the United States (Table A-51), 75% originated in CMU 
States, 23% in WMU States, and less than 2% in the EMU 
(Tables A-57 and A-60). The greatest contributors to the 
harvest in Mexico were the Mid—CMU States (52%); 
Oklahoma (13%), Nebraska (10% ), and Kansas (9%) were 
the most important. The West-CMU tier contributed 16% 
of the kill, with each of the four States (Montana, Wyo- 
ming, Colorado, and New Mexico) in that tier providing 
between 2 and 6%. Of the WMU contribution, Arizona 
25 
(7% ) and California (5% ) were major suppliers to the Mexi- 
can harvest. 
Region 1—Northwest Coast (n = 87),—As would be 
expected, the northwestern part of Mexico received a large 
proportion of its dove harvest from the WMU (50%) and 
few birds from the EMU and East-CMU (3% , Table A-60). 
Somewhat surprisingly, however, 47% of its harvested 
doves originated from the Mid-CMU and West-CMU tiers 
of States; these birds had to cross the Sierra Madre Occi- 
dental to reach the harvest locations. This mountain bar- 
rier must not impose as large a problem to mobility as 
suspected, 
Region 2—Northern Highlands (n = 21), — Although 
hunters in this region harvested a small number of doves 
from the United States, remarkably even proportions of 
birds were received from all five of the WMU and CMU 
tiers of States. The largest contributor was the East-WMU 
with 30%, but the West-CMU provided 21% and 
Mid-CMU 22%. The EMU contributed no birds to the 
harvest in this region. 
Region 3— Northeast Coast (n = 11). — Migrating doves 
from the United States apparently overfly or otherwise 
bypass northeastern Mexico. However, of the few birds that 
were recovered in this region, 64% came from the 
Mid—CMU tier of States, 18% from the East-CMU, and 
9% from the EMU. That area of the United States west 
of the Mid-CMU contributed less than 14% of the North- 
east Coast harvest. 
Region 4— Western Highlands (n = 694). —More than 
75% of the harvest in Mexico occurred in this region, par- 
ticularly in the States of Jalisco and Michoacan. The major 
contributor to this harvest was the Mid-CMU with 53%. 
The West-CMU provided 17% and the West-WMU 13%. 
The East-WMU and East-CMU each contributed about 
8% and the EMU 1%. 
Region 5 — Central Highlands (n = 49), — About 6% of 
the harvest in Mexico was taken in this region, mainly in 
the States of Morelos, Puebla, and Mexico. Fully 77% of 
this harvest originated from the Mid-CMU tier of States 
located directly north of the region. Thirteen percent of 
their harvest came from the East-CMU (10%) and the 
EMU (3%), whereas 10% originated in the other three tiers 
west of the Mid-CMU. 
Region 6—Southern Mexico (n = 20). — Although this 
region accounted for only about 2% of the Mexican har- 
vest of doves banded in the United States, many birds prob- 
ably fly through or over the Isthmus of Tehuantepec. Of 
the birds harvested in this southern region, all originated 
from areas of the United States east of the West-CMU., The 
Mid-CMU contributed 70% , the East-CMU supplied 25 % , 
and the EMU 5%. 
Region 7—Yucatan Peninsula (n = 0). —Migrating 
mourning doves from the United States apparently bypass 
this region entirely on their southern migration, preferring 
a more southwesterly route. 
