Bellrose, Frank C.

Crompton, Robert

Sanderson, Glen C.

Illinois Digital Environment for Access to Learning and Scholarship Repository

Waterfowl Censuses on the Mississippi River from St. Louis, Missouri, to Cairo, Illinois: 4 December 1974 through 26 March 1975. Nine survey flights were made, at approximately 2-week intervals. These surveys were made in the same manner and by the same individual (Crompton) as were the surveys of the same area made in 1972-73 and 1973-74 (Bell rose et al. 1973, Sanderson et al. 1974). Additional surveys to determine the use of this section of the river by herons were made in the springs of 1973, 1974, and 1975 (Graber 1973, 1974, 1975). Only those species of waterfowl 1 isted in Table 1 were identified during these flights. A comparison of the censuses for the past 3 years is shown in Table 2. The number of mallards censused in 1974-75 was only slightly lower than the number counted in i972-73 and was substantially higher than the number seen in 1973-74. More black ducks, common goldeneyes, pintails, American wigeons, and canvasbacks were censused in 1974-75 than in either of the two previous seasons. The coot, lesser scaup, ring-necked duck, and redhead were the only species showing substantial declines in 1974-75 as compared with 1973-74. This study was partially supported by the U.S. Army Corps of Engineers, St. Louis District, 210 North 12th Street, St. Louis, Missouri 63101, under Purchase Order LMSSD 75-1410. REFERENCES CITED Bellrose, Frank C., Glen C. Sanderson, and Robert Crompton. 1973. Lower Mississippi River waterfowl censuses. 111 inois Natural History Survey. Report to the Waterways Experiment Station. 14pp (typed). Graber, Richard R. 1973. Mississippi River heron census. 111 inois Natural History Survey. Report to the Waterways Experiment Station. 4pp (2 figs.) (typed). 1974. Mississippi River heron census II. Illinois Natural History Survey. Report to the Waterways Experiment Station. 5pp (typed). 1975. Mississippi River heron census 11 I. 111 inois Natural History Survey. Report to the u. S. Army Corps of Engineers, St. Louis District. 3pp (2 figs.) (typed). Sanderson, Glen C., Frank C. Bellrose, and Robert Crompton. 1974. Waterfowl censuses on the Mississippi River from St. Louis, Missouri, to Cairo, 111 inois: 6 December 1973 through 2 April 1974. 111 inois Natural History Survey. Report to the Waterways experiment Stat ion. 2pp (2 tables) (typed). Glen C. Sanderson, Ph.D., Wildlife Specialist and Head Frank C. Bellrose, Ph . D., Wildlife Specialist Robert D. Crompton, Field Assistant Section of Wildlife Research 111 inois Natural History Survey Urbana, 111 inois 61801 7 August 1975 Tab le 1. Wuterfov,1 censuses, Miss issipp i Rive r--St. Louis, Missour i, to Cairo, llli nois--4 December J97t+, through 26 M<1rch 1975--mal lard. Area I I Q) Q) ::, :, I > > rel rel >- >- Q) Q) I Q) Q) ... ... ·- ·- I.. I.. -0 -0 I I•- ·- > > Q) Q) I.. I.. V'I .Y. .Y. u u Q) Q) 3 3 rel rel ·- 0 0 C C I 0 0 I.. '-:, ·- ·- - - Q) Q) I.. I.. I- I-·- ·-0 3 3 rel rel <.:1 <.:1 Q) Q) CJ <.:1 ...J V'I V'I ... ... ... ... -0 -0 0 . ~ ~~ V'I • • V'I V'I C C Q) Q) '->- Q) Q) Q) Q) rel rel a. O.•-... ·- ·- '- I.. ... ... ..c ..c I.. I.. rel rel co Date V') ::.:: :::£'. U u V') V') u u <.:1 c.:,u uu Tota l 4 Dec . 74 1,700 0 48 86 213 290 345 2,682 17 Dec. 74 SIS 24 132 286 815 67 368 2,207 2 Jan . 75 325 0 103 86 117 86 288 1, 005 14 Jan. 75 125 16 48 123 208 413 315 I, 248 27 Jan. 75 166 27 69 138 310 465 875 . 2,050 10 Feb. 75 850 41 I 78 212 637 1,650 875 4,443 27 Feb. 75 978 62 208 410 I, 075 3,900 3, 125 9, 758 11 March 75 289 63 187 446 721 1,735 2,875 6,316 26 V.arch 75 500 30 85 184 458 872 1,775 3,904 Tota 1 5,448 263 I, 058 1, 971 4,554 9, Lf 78 I0,841 33,613 Table 1 - continued. T.:ible J. Waterfowl censuses, Mississ ipp i River--St. Louis, Missour i, to Cairo, llli nois--4 December 1974, through 26 M~rch 1975--black duck. Area I I G) G) ::::, ::::, I > > ro ro >- >- G) G) I 11) 11) .... .... ·- ·- '- I.. -0 -0 I I •- ·- > > ~ 11) '- '-VI~ ~u u G) G) J: ro ro ·- I.) I.) C C I 0 0 I.. '-::::, ·- -11> G) '- '-I- I- ·- ·-0 J: J: ro ro c, C, 11) G) C, C, ...J VI VI .µ .... .... .... -0 -0 0 . ~ ~ ~ VI • • VI VI C C G) G) '->- G) G) G) Ql ro ro a. a.•-.... ·- ·- I.. I.. .... .... ...c ...c '- '- ro ro ro Date Vl ~ ~ u UVl Vl U u C, c,u uu Tota l 4 Dec . 74 so 0 12 19 41 24 33 179 17 Dec. 74 85 4 29 53 195 23 42 43 1 2 Jan. ·75 40 0 24 17 32 14 26 153 14 Jan . 75 30 3 13 31 23 52 47 199 27 Jan. 75 30 6 I 1 17 32 43 55 194 10 Feb . 75 75 8 27 35 44 93 58 340 27 Feb. 75 80 15 36 43 69 136 118 497 11 March 75 40 16 19 42 34 87 11 0 348 26 March 75 49 1 I 17 28 49 46 68 268 Tota 1 479 63 188 285 519 S 18 557 2,609 Table 1 - continued. Tab le 1. Waterfow l censuses , Miss iss i pp i Ri ve r--St. Lou is , Missou ri, to Ca iro, llli no is- -4 Decembe r 19/4, through 26 March 1975--pi nta i 1. Area I I Q) Q) ::, :, I > > l'D l'D >- >- Q) Q) I Q) Q) .... .... ·- ·- L. L. -0 -c, I I •- ·- > > ~ Q) L. L. Ill .:,/. .Y. U u Q) Q) 3 l'D l'D ·- u u C C I 0 0 L. L. ::, ·- - Q) Q) L. L. I- I-·- ·-O 3 3 l'D l'D (.!) (.!) Q) Q) (.!) c.:, .....I Ill Ill µ .... .... .... -0 -0 0 . ~ ~ ~ Ill . • Ill Ill C C Q) Q) L. >- Q) Q) Q) Q) l'D 11) 0. O.•-.... ·- ·- L. L. .... .... ..c .c I- L. l'D (0 (0 Tota l Date Vl ~ ::><'.: U UVl Vl U u (.!) c..,u uu 4 Dec •. 74 40 0 0 0 0 17 65 122 17 Dec. 74 2 Jan. 75 14 Jan . 75 27 Jan. 75 10 Feb. 75 19 19 27 Feb. 75 175 0 0 34 29 64 143 445 11 March 75 175 0 0 16 42 113 270 616 26 t-'.a rch 75 200 0 0 18 72 310 865 1,465 Tota l 590 0 0 68 143 504 I, 362 2, 667 Tab le 1 - cont inued. Tab le 1 • \./.:lte r fo\'1 1 censuses , Mi ss i ss ipp i Ri ve r --S t. Loui.s , Mi ssou ri, t o Ca iro , llli no i s--4 Decembe r 1974, through 26 March 1975-- b l ue-\•iinged tea l. Area I I C1) C1) :, :, I > > !O l1J >- >- C1) C1) I C1) C1) ... ... ·- ·- L L-C:, -0 I I•- ·- > > Q) Q) L L VI ~ .:x.u u C1) C1) 3 3 l1J IO ·- u u C C I 0 0 L L :, ·- - C1) Q) I... I... I- I- ·- ·-0 3 3 !O !O c.:, c.:, C1) C1) (:J (:J ....I VI VI µ ... ... ... -0 -0 0 . ~ ~ ~ VI . • VI VI C C Q) Q) L >- Q) Q) <I.I Q) l1J l1J a. a.•-... ·- • - L L µ ... .c . .C L L 11J !O IO Tota l Date V) ::.::: ~ u UV, V) u u (:J c.:,<.> uu 4 Dec . 74 17 Dec. 74 2 Jan . 75 14 J a n. 75 27 Jan. 75 10 Feb. 75 27 Feb. 75 11 March 75 26 Ma rc h 75 30 0 0 9 53 175 375 642 Total 30 0 0 9 53 175 375 642 Tab le 1. - cont i nued. T.:ible J. Waterfowl censuses, Mississippi Ri ver--St. Louis, Mi ssou ri, to Cairo, llli no i s--4 December 1974, thro ugh 26 M.:irch 1975--grcen-\-1inged tea l. Area I I Cl) Q) ::, ::, I > > llJ Ill >- >- Cl) Q) I Cl) Q) ... ... ·- ·- L. L. -0 -0 I I •- ·- > > ~ ~ ~ L. VI ::,t. .::L U (..) Cl) Q) llJ ·- u u C C I 0 0 I.. L. :::, ·- ·- - - Q) Q) I.. I.. I- I-·- ·-0 ~ '.t Ill l'CI c.:, c.:, Q) (I) c.:, c.:, ...J VI VI .., ... ... ... -c -c 0 . ~ ~~ VI • • VI VI C C Q) Q) L. >- Cl) Q) Q) (I) l1J Ill 0. a.•-... ·- · - I.. I.. ... ... .c .c I.. '- co co l1J Tota l Date U1 ~ :,,:: (..) UVl U1 u (..) c.:, C.:,<..) µu 4 Dec . 74 0 0 0 0 0 0 80 80 17 Dec. 74 2 Jan. 75 14 Jan. 75 27 Jan. 75 10 Feb . 75 27 Feb. 75 11 /-'.arch 75 26 l'.a rch 7 5 0 0 0 0 0 20 85 105 Total 0 0 0 0 0 20 165 185 Table 1 - continued . Table I, Waterfowl censuses , Miss iss ipp i Ri ve r--St. Loui s , Missouri, to Cui ro, 111 i no is--'• December 1974, through 26 March 197 5- -Amer ican \-J ig<:on. Area I I Q) Q) :J :J I > > 111 (ti >- >- Q) Q) I Q) Q) .... .... ·- ·- '-- L. -0 -0 I I•- ·- > > ~ Q) '-- L. u'I .Y. .Y. u u Q) Q) 3 (ti (ti ·- u u C C I 0 0 L. L. ::, ·- - Q) Q) '- L. I- I-·- ·-0 :"t 3 111 I'll <.:I <.:I Q) Q) (.!J <.:) ...J u'I u'I .... .... .... µ -0 "O 0 . ~ ~ ~ u'I • • Ill Ill C C Q) Q) '->- Q) (1) Q) Q) 111 (ti a. a.-µ · - ·- '- '- .... .... .r: ..c '- L. I'll ro ltl Tota l Date V, :.:: :.:: u UV> V, u u (.!J <.:JU uu 4 Dec . 74 175 0 0 0 37 0 42 254 17 Dec. 74 0 0 0 0 10 13 18 41 2 Jan . 75 14 Jan. 75 27 Jan. 75 0 0 0 0 9 18 23 50 10 Feb. 75 0 0 0 0 0 42 62 104 27 Feb . 75 0 0 0 7 54 48 63 172 11 March 75 250 0 0 38 19 74 88 469 26 /-'.arch 75 65 0 1 l 34 68 525 2,1 00 2, 803 Tota l 490 0 1 1 79 197 720 2,396 3, 893 Tab le 1 - cont i nued. T.:ible 1. W.:itcrfowl censuses, Mississippi River--St. Louis, Missouri, to Cai ro, l)linols--4 Decembe r 1974, through 26 Ma rch 1975-~gadwa l 1. Area I I (1) (1) ::::, ::::, I > > l'tJ l'tJ >- >- (1) (1) I (1) (1) .... µ · - ·- '- '- iJ iJ I I •- ·- > > ~ a., '- '-Vl ~ ~u u (1) a., 3: l'tJ l'tJ ·- u u C C I 0 0 '- '-:::, ·- ·- - - (I) Cl) '- '- I- I-·- ·-0 3: 3: l'tJ l'tJ <.:> <.:> (1) a., <.:> <.:J ...J Vl Vl µ µ .... µ iJ iJ 0 . ~ ~~ Vl . • Vl Vl C C (1) (1) '->- (1) (1) (I) (1) (lJ r1) a. a.•-µ ·- ·- '- '- .... .... .c .c '- '- (lJ l'tJ (lJ Tota l Date Vl :,0:: :.:: u UVl Vl U u c., c., u uu 4 Dec. 74 17 Dec. 74 2 Jan. 75 14 Jan. 75 27 Jan . 75 10 Feb. 75 27 Feb. 75 11 March 75 0 0 0 0 0 23 17 40 26 v.a rch 75 0 0 0 16 22 52 25 11 5 Tota l 0 0 0 16 22 75 42 155 Table I - continued. T.:ible 1. Waterfow l censuses , Mississipp i River--St. Lou is, Missouri, to Ca iro, llli no is --4 Decembe r 197 l•, through 26 March 1975--shove ler. Area I I Q) Q) ::, ::, I > > ro ro >- >- Q) Q) I Cl) Cl) .... .... ·- ·- L. L "'O "'O I I•- ·- > > ~ Cl) L. L. VI::,(_ .::L u u Q) Cl) 3: ro co ·- 0 0 C C I 0 0 L. L :, ·- - Cl) Q) L LI- I- ·- ·-0 3: 3: (IJ ro <..:J <.,:, Cl) Q) c.:, c.:, ...J VI VI .µ .... .... .... "'O "'O 0 . ~ ~ ~ VI . • VI VI C C Q) Cl) L. >- Cl) Cl) Cl) Q) co ro a. a.•-.... ·- •- L '- .... .... .c ..C L '- (IJ ro co Tota l Date Vl ~ ~u UVl Vl U u C, <.,:,U uu 4 Dec . 74 0 0 0 0 0 8 0 8 17 Dec. 74 2 Jan. 75 14 Jan. 75 27 Jan . 75 10 Feb. 75 27 Feb . 75 11 March 75 0 0 0 0 0 8 14 22 26 ,~.arch 75 30 0 0 18 12 34 63 157 Tota l 30 0 0 18 12 50 .77 187 Tab le 1 - cont inued . Tab le J. \J<1tcrf0\-1l censuses, Mississipp i River--St. Louis, Missouri, to C.:ii ro, Illi no is--~ December J 97L,, through 26 Murch 1975-- lesscr scaup. Area I I Q) Q) ::, ::, I > > IQ IQ >- >- Q) Q) I Q) Q) µ µ ·- ·- '- '- -0 -0 I ' ·- ·- > > ~ Q) I.. I.. 11'1 .::,(_ .::,(_ u u Q) Q) ~ IQ ro ·- I) I) C C I 0 0 I.. I.. :::, ·- - Q) Q) I.. I.. I- I-·- ·-0 J; J; IQ IQ <..::I <.:J Q) Q) <.:I <.:I ....J 11'1 11'1 µ µ µ µ -0 "O 0 . ~ ~~ 11'1 • • 11'1 11'1 C C C) Q) I.. >- Q) Q) Q) Q) IQ IQ 0. O.•-µ ·- ·- I.. I..µ >J..C ..c I.. '- IQ ro IQ Total Date Vl ~ ~u UVl Vl U U<..::1 <.::I u uu 1¼ Dec. 74 0 0 0 I 1 106 52 27 196 17 Dec. 74 2 Jan . 75 11+ Jan . 75 27 Jan . 75 0 0 0 0 0 27 16 43 10 Feb. 75 85 0 0 0 0 14 l 47 246 27 Feb. 75 115 0 I 1 57 46 143 215 587 11 /\arch 75 85 0 13 78 118 208 385 887 26 l".a rch 75 l I 5 0 8 57 162 100 355 797 Tota I 400 0 32 203 432 51.1► I, 145 2,756 Table I - continued . Table 1. Waterfowl ~cnsuscs , Mississippi Rivcr--St. Lou is, Missouri, to Ca iro, llli no is --4 December 1974, through 26 March 1975--ring-necked duck. Area I I (l) (l) :, ::, I > > Ill Ill >- >- (l) (l) I (l) (l) 4-' 4-' ·- ·- I.. L. -0 -0 I I•- ·- > > ~ (l) L. L. VI.::(. ~u u (l) (l) 3 11) 11) ·- I) I) C: C: I 0 0 L. L. ::, ·- - (l) (l) L. L. I- I-·- ·-0 ~ 3 Ill IO <.::J <.::J Q) (l) <:J <:J ...J VI VI .µ .µ .µ .µ -0 -0 0 . ~ ~~ VI . • VI VI C C (l) (l) L. >- (l) Q) Q) (l) IO co a. a.•-µ ·- ·- L. L. .µ 4-' .c .c L. I.. IO CO IO Tota l Date V, ::.:: ::.::u UVl V, u u <.::J <:JU uu 4 Dec . 74 0 0 0 0 16 0 0 16 17 Dec . 74 2 Jan. 75 14 Jan . 75 27 Jan. 75 10 Feb. 75 27 Feb. 75 0 0 0 17 12 29 40 98 11 March 75 0 0 0 I 1 22 36 73 142 26 March 75 40 0 0 45 96 73 150 404 To ta I 40 0 0 73 146 138 263 660 Table l - cont inued . Table 1. Waterfowl censuses , M~ssissippi River--St. Louis, Missouri, to Cairo, 111 i no i s--l• Decembe r 1974, th rough 26 M.:i rch 1975--cunvasback. Area I I Q) Q) ::, ::, I > > IO IO >- >- Q) Q) I Cl.I Q) .... ..., ,_ ·- I.. I.. -0 -0 I I•- ·- > > ~ Q) I.. I.. Vl .Y. .Y. u u Q) Q) 3 IO IO ·- u u C C I 0 0 I.. I.. ::, ·-- Q) Q) I.. L I- I-·- ·-0 3 3 IO IO <.:> <.:> Q) Q) c:, c:, _J Vl Vl ._, .... .... .... -0 -0 0 . ~ ~ ~ Vl . • Vl Vl C C Q) Q) L >- Q) Q) (I} (I} IO IO 0. O.·-.... ·- •- L I.. .... .µ .c .c I.. L 10 IO IO Date Vl ~ ~u UVl Vl U u c:, <.:>U uu Tota l 4 Dec. 74 17 Dec. 74 2 Jan. 75 14 Jan. 75 27 Jan. 75 0 0 0 0 0 0 85 85 10 Feb. 75 0 0 0 0 0 0 73 73 27 Feb. 75 0 0 0 0 19 68 52 139 11 March 75 55 ~ 0 0 i.3 27 52 86 263 26 t-'.a rch 75 75 0 0 45 96 73 150 439 Tota 1 130 0 . 0 88 Jl•2 .l 93 : · L~46 999 Table l - continued. Tab le 1. W.:1tc r fovd censuses, Mississippi Rivcr--St . Lou i s , Missouri , to Cui ro, 111 i no i s--'f December 1974, through 26 M~rch 19/5-- ruddy duck . Area I I Cl) Q) ::, ::, I > > ro ro >- >- Cl) Cl) I Q) Q) µ µ,_ ·- \.. L. "'O --0 I I • - ·- > > 1 Q) \.. \.. 1/1 .:,/. .:L. u u Q) Q) ~ ro ro ·- u u C C I 0 0 I.. I.. :::, ·- ·- - - Q) Q) \.. I.. I- I-·- ·-0 :? ~ IO ro CJ CJ Cl) Q) CJ CJ ....I 1/1 1/1 µ µ µ µ --0 --0 0 . ~ ~ ~ 1/1 . • 1/1 1/1 C C Cl) Q) I.. >- Q) Q) Q) a> ro ro a. a.•-µ ·- ·- I.. I.. µ µ_,c ..c I.. L. ro 11> ro Total Date V'I ~ ~ u UVl V'I u UCJ CJ u uu 4 Dec. 74 17 Dec. 74 2 Jan. 75 14 Jan . 75 27 Jan. 75 10 Feb. 75 27 Feb. 75 I 1 /\arch 75 26 March 75 0 0 0 0 0 8 30 38 Tota 1 0 0 0 0 0 8 30 38 Table - cont i nucd. Tab le I. Waterfow l censuses , Miss i ss ipp i Rive r --St . Lou is , Missou r i , toCil i ro, Ill i no is--4 December 1974, through 26 M,:irch 1975--~onrnon goldcneye . Area I I Q) Q) ::, ::, I > > Ill Ill >- >- Q) Q) I Q) Q) ... .., ,_ ·- '- '- -0 -0 I I •- ·- > > ~ Q) '- '-11'1 .::L. ~ u u Q) Q) 3 Ill IO ·- \) \) C C I 0 0 '- '-::, ·- - Q) Q) '- L )- I- ·- ·-O 3 3 Ill IO <.::I c..:, Q) Q) c..:, <.::I _J \II \II ... ... ... ... -0 -0 0 . ~ ~ ~ \II . • \II \II C C Q) Q) '->- Q) Q) Q) a, ca ro a. a.•-... ·- ·- '- L ._. ... ..c . C L L fO ro IO Date V, ~ ~ u UVl V, u UC.:, c..:,u uu Tota l 4 Dec . 74 65 . 0 0 0 0 0 8 73 17 Dec . 74 25 0 0 4 0 13 9 51 2 Jan . 75 25 0 7 21 18 0 9 80 14 Ja n. 75 55 0 5 9 18 36 27 150 27 Jan. 75 28 0 7 0 4 15 12 66 10 Feb . 75 350 14 31 19 28 42 57 541 27 Feb . 75 48 0 15 23 32 47 16 181 11 March 75 35 0 18 8 14 28 1 l l 14 26 /,.arch 7 5 15 0 0 0 1 l 4 18 48 To ta I 646 14 83 84 125 185 167 I , 304 ' Tab le 1 - continued. Table 1. Waterfowl censuses, Mississippi "iver--St . Louis, Missouri~ to Cairo, 111 i no is--'• December 1974, thrnugh 26 March 1975--Amer ican merganse r . Area I I (I) (I) ::, ::, I > > ro ro >- >- (I) (I) I (I) (I) .... .... ·- ·- L L -0 -0 I I •- ·- > > Q) (I) L I.. 1/1 .x .:::t.u u (I) (I) 3 3: t'll ro ·- u u C C I 0 0 I.. L :::, ·- ~ Q) C) L I.. I- I-·- ·-o 3 > ro I'll <.!1 <..:) Q) (I) (:J <.!1 ...I 1/1 ~ .... .... .... µ -0 -0 0 . ~ ~~ V1 . • 1/1 Ill C C (I) Q) I.. >- (I) (1) Q) <t> ro t'll a. a.•-µ ·- ·- I.. L. .... +'..C ..C L L ro ro ro Tota l Date V, ~ ~u UV, V, u u <.!1 <.::JU uu 4 Dec. 74 20 0 0 0 4 0 0 24 17 Dec. 74 10 0 0 0 7 0 4 21 2 Jan. 75 6 0 0 11 7 0 0 24 14 Jan. 75 25 0 6 0 8 14 19 72 27 Jan. 75 8 0 7 0 4 15 12 46 10 Feb. 75 225 8 19 7 21 37 L•2 359 27 Feb. 75 25 0 9 12 19 30 7 102 I I l·\a rch 75 20 0 5 0 4 17 13 59 26 l'.a rch 75 20 0 0 2 5 0 6 33 Tota 1 359 8 46 32 79 I 13 103 740 Table I - continued. I . I I I I I Table t. Uaterfowl censuses, Mississippi Rivcr--St. Louis, Missouri, to Ca iro, 111 i no is--'• December ! 1974, through 26 March 1975--Canada goose. Area I I Cl) Cl) :, :, I > > l'0 ltl >- >- Cl) Cl) I Cl) Cl) ..., ..., ·- ·- I- \.. "O -0 I I •- ·- > > i Cl) \.. \.. VI .X .x u u Cl) Cl) ~ ro ltl ·- u u C C I 0 0 \.. I-:, ·- ~ Cl) Cl) \.. '- ._ r·- ·-0 ~ ~ l'0 l'0 c.:, c.:, Cl) Cl) c., <.:> ...J VI VI ,µ ..., ..., ..., -0 "O 0 . ~ ~ ~ VI • • VI VI C C a) Cl) I->- Cl) a)~ C) ltl l'0 a. O.•-..., ·- ·- \.. \.. ..., ..., .c .c \.. \.. ltl l'0 ltl Date ~ ~ ~ u u~ ~u u <.:> c., u uu Tota l 1+ Dec . 74 · 0 0 0 0 48 43 0 91 17 Dec. 74 0 0 0 12 17 11 19 59 2 Jan. 75 0 0 0 14 29 315 1,300 1,658 14 Jan. 75 0 0 0 0 33 l I 4 187 334 27 Jan . 75 0 0 0 67 155 465 1,350 2,037 10 Feb. 75 60 0 47 88 113 I ,650 2,775 4,733 27 Feb. 75 85 0 14 138 815 4,300 7,800 13, I 52 11 /'.arch 75 I I 5 0 18 415 610 5,200 3,650 10,008 26 '1,.:irch 75 65 0 9 41 38 216 490 859 To ta 1 325 0 88 775 1,858 12, 3 JI• 17, 571 32,931 Table 1 - continued . T.:iblc 1. WcJtcrfow l censuses , Miss issipp i River--S t. Louis, Missouri, to CcJi ro, 111 i no i s--1• December 1974, th rough 26 March 1975-- bl ue nnd snm-1 geese . Arca I I (I) (I) ::::, ::::, I > > 11) 11) >- >- (l) (l) I (l) (l) ... .., ,_ ·- L. L. -a -a I I • - ·- > > j (l) L. L. U'I .:,t. .:,t.u u (l) (l) 3 11) 11) ·- u u C C I 0 0 L. L. ::::, ·- ·- - - (I) Q) L. L. .- .- ·- ·-0 3' 3 11) m c, C, (I) (I) C, C, ...J U'I U'I ... ... ... ... -a -a 0 . ~ ~ ~ U'I . • U'I U'I C C (I) (I) L. >- (I) (I) (I) (l) 11) 11) a. a.•-... ·- ·- L. L. ... ... .c .c L. L. 11) 11) 11) DcJte Vl ~ ~u UVl Vl U UC, <.:> u uu Tota l -4 Dec . 74 0 0 0 o. 55 16 0 71 17 Dec . 74 2 Jan. 75 0 0 0 0 0 12 45 57 14 Jan. 75 27 Jan . 75 0 0 0 0 0 23 16 39 10 Feb. 75 0 0 1 I 6 0 16 37 70 27 Feb. 75 0 0 0 0 6 76 162 244 11 /.',arch 75 0 0 0 7 22 57 43 129 26 /"'.arch 75 0 0 0 0 14 43 105 162 Tota l 0 0 1 1 13 97 243 l•08 772 Tab le 1 - continued. 1. T.1ble 1, \Jaterfov,i l censuses, Mississippi River--St. Louis, Missouri,. to Cc:iiro, I! 1 i no i s--1~ Decembe r 1974, through 26 March 1975--coot. Area I I (I) (I) :::, :::, I > > co co >- >- (I) (I) I (I) (I) ... .µ ·- ·- L L -C, -c, I I•- ·- > > ~ (I) L L VI .X .Y. u u (I) (I) 3: IO co ·- \) \) C C I 0 0 L L :::, ·- ·- - - (I) (I) L Lr r·- ·-0 ~ 3 rtJ rtJ <.,:, 0 Q) (I) <.:J <.:J ..J VI VI µ ... ... .µ -c, -c, 0 . ~ ~ ~ VI • • VI VI C C Q) Q) L >- (I) Q) Q) Q) co co a. O.•-... ·- •- L L .µ .µ .c ..C L L CO IO CO Date V') :.:: ~u u V') V') u <..> <.:J <.:JU uu Total 4 Dec. 74 60 0 0 0 53 28 135 276 17 Dec . 74 0 0 0 0 12 33 28 73 2 Jan. 75 0 0 0 0 0 0 33 33 14 Jan . 75 30 0 0 0 0 0 27 57 27 Jan. 75 0 0 0 18 0 42 178 238 10 Feb . 75 0 0 0 0 18 53 28 99 27 Feb . 75 70 0 0 13 84 168 315 650 11 March 75 475 JO 55 86 123 275 160 l, 184 26 March 75 198 24 48 66 93 260 615 I, 304 Tota I 833 34 103 183 383 859 1,519 3,914 Table 1 - continued. Tobie 1. \laterfovd censuses , Mississippi Ri ver--St. Louis, Missour i, . to C.Jiro , 111 i no i s--1• Decembe r 1 9 .' !l 1 through 26 M.:irch 1975--bald eag le . Area I I Q) Q) :, :, I > > co ro >- >- Q) Q) I Q) Cl) .µ .µ ·- ·- \.. I.. -0 '"CJ I I •- ·- > > ~ Q) '- '-1/'1 .:L .:L u u Cl) Cl) 3 10 ro ·- u u C C I 0 0 L. L. :, ·- ·-- - Q) Q) \.. L. I- I- ·- ·-0 3 3 10 (iJ C, <.:J Q) Q) CJ C, ....J 1/'1 <II .µ .µ .., .µ '"CJ '"CJ 0 . ~ ~ ~ 1/'1 . • 1/'1 Ill C C Q) Q) L. >- Q) Q) Q) Q) 10 (1J a. a.•-.., ·- ·- L. I.. .., .µ ..c . ..c L. L. co 10 ro Tota l Date Vl ::S:: ::.:: u UVl Vl U UCJ <.:J u uu 4 Dec . 74 0 I 0 0 2 6 5 14 17 Dec. 74 1 0 0 0 0 I 0 2 2 Jan. 75 14 Jan. 75 0 1 0 0 1 3 7 12 27 Jan. 75 I 0 3 7 5 2 6 24 10 Feb. 75 1 0 2 5 12 15 8 43 27 Feb. 75 11 /-\arch 75 0 1 3 1 5 6 8 24 26 :~.arch 75 Tota 1 3 3 8 13 25 33 34 119 ,- Table 2. A comparison of the waterfowl censuses on the Miss:ssippi River from St. Louis, 1iissouri, to Cairo, I 11 i no is; 1972- 73, 1973-74, and 1974-75 , Number Counted on Nine Aerial Flights Species 1972-73 1973-74 1974-75 Canada Goose 108,293 25,340 32,931 Mal lard 36,624 15,491 33,613 Black Duck l, 842 l , 729 2,609 Corrvnon Goldeneye 463 783 1,304 American Me rganser 164 743 740 Pintail 150 641 2,667 Coot 100 6,061 3,914 American \.Ji geon 25 1,294 3,893 Lesser Scaup l l 5,415 2,756 Shoveler 6 426 187 Ring- necked Duck 0 I, 712 660 Canvasback 0 486 999 Blue and Snow Geese 0 418 772 Redhead 0 325 0 Blue- winged Teal 0 166 642 Green-winged Teal 0 92 185 Gadwa 11 0 55 155 Ruddy Duck 0 0 38 Bald Eagle 43 68 119 

Waterfowl Censuses on the Mississippi River from St. Louis, Missouri, to Cairo, Illinois; 4 December 1974 through 26 March 1975

https://www.ideals.illinois.edu/bitstream/2142/113694/2/WaterfowlCensusesMississippi19741975.pdf

Waterfowl Censuses on the Mississippi River from St. Louis, Missouri, to Cairo, Illinois; 4 December 1974 through 26 March 1975

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