ABRAMSON, M. 1979. Vigilance As a Factor Influencing Flock Formation Among Curlews Numenius

Total Page:16

File Type:pdf, Size:1020Kb

ABRAMSON, M. 1979. Vigilance As a Factor Influencing Flock Formation Among Curlews Numenius

1

Appendix. Ecological factors influencing vigilance among species of foraging birds. Data are sorted by year of study.

Species Body mass (g) Sample size Maximum group Diet Vigilance alone Asymptotic % time spent in References size (%) vigilance (%) agonistic activities

Anser albifrons 2075 100 vegetation 3 Owen 1972

Sturnus vulgaris 87.6 236 10 seeds 47.00 12 Powell 1974

Branta leucopsis 1550 200 vegetation 10.10 0.3 Ebbinge et al. 1975

Branta leucopsis 1788 28 2000 vegetation 33.00 6.00 Drent and Swiestra 1977

Anser albifrons 2075 42 1061 vegetation 65.00 5 Lazarus and Inglis 1978

Anser brachyrhynchus 2770 2235 33 vegetation 5.00 0 Lazarus 1978

Branta bernicla 1370 43 600 vegetation 25.00 10.00 Inglis and Isaacson 1978

Junco phaeonotus 20.4 97 10 seeds 28.10 10.00 Caraco 1979

Numenius arquata 742 42 28 invertebrates 16.20 3.00 Abramson 1979

Junco phaeonotus 20.4 267 7 seeds 66.00 34 9 Caraco et al. 1980

Passer domesticus 28 98 50 seeds 6 Barnard 1980 2

Passer domesticus 28 37 4 seeds 62.00 47 McVean and Haddlesey 1980

Struthio camelus 111000 70 4 vegetation 34.90 14 Bertram 1980

Sturnus vulgaris 87.6 39 225 invertebrates 27.30 2 Jennings and Evans 1980

Branta bernicla 1370 64 1800 vegetation 25.00 9 Inglis and Lazarus 1981

Corvus frugilegus 489 139 30 invertebrates 56.00 12 Waite 1981

Chionis minor 625 75 30 invertebrates 8.00 3 Burger 1982

Anas platyrhynchos 1082 1000 seeds 10 1 Jorde et al. 1983

Passer domesticus 28 5 6 seeds Elcavage and Caraco 1983

Passer domesticus 28 57 4 seeds 80.67 38.00 1.4 Studd et al. 1983

Anas strepera 968 100 vegetation 11.1 0.5 Paulus 1984

Eudocimus albus 1036 39 78 invertebrates 5.7 Bildstein 1983

Passer domesticus 28 541 4 seeds Elgar et al. 1984

Picoides pubescens 27.5 160 4 invertebrates 11.10 Sullivan 1984

Streptopelia risoria 152 22 6 seeds Lendrem 1984

Cyanistes caeruleus 11.1 10 5 seeds 12.00 Hegner 1985 3

Haliaeetus leucocephalus 4130 110 14 carrion 40 Knight and Knight 1986

Anas americana 792 15 vegetation 4 0.9 Turnbull and Baldassare 1987

Carduelis carduelis 16 1 seeds 68.00 Glück 1987

Corcorax melanorhamphos 364 62 33 seeds 7.00 Heinsohn 1987

Eudocimus albus 1036 25 15 invertebrates 75.00 18.00 Petit and Bildstein 1987

Fringilla coelebs 21.9 196 11 seeds 60 Beveridge and Deag 1987

Grus americana 7300 7 invertebrates 6.30 Hunt 1987

Passer domesticus 28 75 4 seeds 52.00 25.00 1 Lima 1987

Passer domesticus 28 281 10 seeds 39.00 Beveridge and Deag 1987

Plocepasser mahali 44 49 4 mixed 16.5 Ferguson 1987

Poecile montana 11.1 2064 4 seeds 41.00 34.00 1 Ekman 1987

Sturnus vulgaris 87.6 55 14 seeds 25 Beveridge and Deag 1987

Anas fulvigula 1043 1061 10 vegetation 4.9 0.7 Paulus 1988

Calidris alpina 55.4 91 7 invertebrates 30.00 5 Redpath 1988

Chen caerulescens 2744 14500 seeds 10.3 0 Gauthier et al. 1988 4

Eolophus roseicapilla 354 199 50 seeds 49.00 12 Westcott and Cockburn 1988

Grus canadensis 3350 128 1000 mixed 1.58 0.4 Tacha 1989

Poecile montana 11.1 451 4 mixed 28.00 2 Hogstad 1988

Psephotus haematonotus 61.4 159 30 seeds 56.00 11 Westcott and Cockburn 1988

Struthio camelus 111000 159 10 vegetation 43.00 40 Burger and Gochfeld 1988

Calidris melanotus 97.8 5 invertebrates 14.8 7.3 Young 1989

Calidris pusilla 27.5 15 invertebrates 2.70 2.4 Young 1989

Limnodromus scolopaceus 100 9 invertebrates 1.88 1.1 Young 1989

Tringa flavipes 77.5 8 invertebrates 9.20 2.6 Young 1989

Chenonetta jubata 815 25 280 vegetation 13 Briggs 1990

Ciconia ciconia 3571 64 40 invertebrates 40.00 15.00 0.2 Carrascal et al. 1990

Calidris alba 57 117 11 invertebrates 3.50 0.2 Burger and Gochfeld 1991a

Cyanistes caeruleus 10.1 14 1 seeds 31.30 Moreno and Carrascal 1991

Larus atricilla 327 279 300 invertebrates 2.8 1 Burger and Gochfeld 1991b

Lophophanes cristatus 11.4 29 1 seeds 38.00 Moreno and Carrascal 1991 5

Parus major 18.9 37 1 seeds 30.30 Moreno and Carrascal 1991

Periparus ater 9.2 31 1 seeds 29.50 Moreno and Carrascal 1991

Pica pica 221 113 3 mixed 32.80 22.9 Diaz and Asensio 1991

Sitta europaea 22.6 49 1 seeds 28.20 Moreno and Carrascal 1991

Anser albifrons 2393 163 100 vegetation 29.70 Ely 1992

Branta bernicla 1760 33 1000 vegetation 5 1 Black et al. 1992

Calidris alpina 55.4 300 100 invertebrates <1% 1 Mouritsen 1992

Chen caerulescens 2744 360 7117 vegetation 5 1 Bélanger and Bédard 1992

Lophophanes cristatus 11.4 27 1 seeds 34.30 Carrascal and Moreno 1992

Periparus ater 9.2 27 1 seeds 27.80 Carrascal and Moreno 1992

Phasianus colchicus 1317 47 10 seeds 97.30 79.30 Milligan and Brigham 1992

Phoenicopterus ruber ruber 3540 887 3500 vegetation 1.1 4.9 Schmitz and Baldassarre 1992

Sitta europaea 22.6 28 1 seeds 34.80 Carrascal and Moreno 1992

Anser anser 3509 6 140 seeds 5.00 Kotrschal et al. 1993

Grus grus 5500 394 10 seeds 18.00 0.5 Alonso and Alonso 1993 6

Pica pica 189 91 12 carrion 32.00 71.00 McKinstry and Knight 1993

Anas crecca crecca 320 157 8 vegetation 37.00 30 Pöysä 1994

Ciconia ciconia 3571 167 26 invertebrates 17.5 Alonso et al. 1994

Corvus corone corone 570 1203 17 seeds 20.00 3.70 Saino 1994

Grus canadensis 3350 1250 5 mixed 16.5 0.2 Sparling and Krapu 1994

Arenaria interpres 134 9 4 invertebrates 6.46 Barbosa 1995

Calidris alba 57 23 59 invertebrates 0.90 Barbosa 1995

Calidris alpina 55.4 96 215 invertebrates 2.73 Barbosa 1995

Calidris minuta 21.1 26 46 invertebrates 1.48 Barbosa 1995

Charadrius alexandrinus 42.3 23 28 invertebrates 6.53 Barbosa 1995

Charadrius hiaticula 63.3 5 14 invertebrates 3.33 Barbosa 1995

Coccothraustes vespertinus 55.7 1472 10 seeds 37.00 15 Bekoff 1995

Gallinago gallinago 97 5 9 invertebrates 13.7 Barbosa 1995

Haematopus ostralegus 526 8 19 invertebrates 8.8 Barbosa 1995

Himantopus himantopus 161 24 13 invertebrates 3.55 Barbosa 1995 7

Junco hyemalis 19.3 117 6 seeds Lima 1995

Limosa lapponica 309 10 173 invertebrates 3.45 Barbosa 1995

Limosa limosa 252 47 178 invertebrates 3.9 Barbosa 1995

Philomachus pugnax 170 22 165 invertebrates 2.49 Barbosa 1995

Pluvialis squatarola 250 33 17 invertebrates 1.33 Barbosa 1995

Recurvirostra avosetta 304 48 146 invertebrates 4.38 Barbosa 1995

Rhea americana 23000 33 8 vegetation 34.00 13 Martella et al. 1995

Tringa totanus 129 23 169 invertebrates 5.16 Barbosa 1995

Vanellus vanellus 211 38 34 invertebrates 1.94 Barbosa 1995

Anser albifrons 2700 122 vegetation 14 0.5 Gawlik and Slack 1996

Branta canadensis 2180 38 1000 vegetation 11.00 0.5 Gawlik and Slack 1996

Chen caerulescens 2744 65 10000 vegetation 14.00 0.5 Gawlik and Slack 1996

Junco hyemalis 19.3 26 7 seeds Lima and Zollner1996

Calidris alpina 55.4 77 189 invertebrates 1.7 Barbosa 1997

Corvus brachyrhynchos 538 23 7 invertebrates 9.50 Ward and Low 1997 8

Gallus gallus 844 52 1 seeds 12.70 Burger 1997

Lonchura punctulata 13.6 6 5 seeds 62.00 35.00 Beauchamp and Livoreil 1997

Loxia leucoptera 26 511 5 seeds Benkman 1997

Rhea americana 23000 65 26 vegetation 16.00 5 Reboreda and Fernandez 1997

Calidris mauri 26.6 232 200 invertebrates 5 1 Davis and Smith 1998

Calidris minutilla 22 288 invertebrates 7 0.2 Davis and Smith 1998

Dromaius novaehollandiae 31500 136 18 seeds 47.00 47 Hough et al. 1998

Limnodromus scolopaceus 100 472 20 invertebrates 4.2 0 Davis and Smith 1998

Molothrus ater 48.7 30 7 mixed 7.3 3.3 Morris and Thompson 1998

Parus major 18.9 15 1 seeds 98.00 Krams 1998

Streptopelia chinensis 159 73 10 seeds 41.00 13 Sadedin and Elgar 1998

Struthio camelus 111000 9 3 seeds 29.00 Ross and Deeming 1998

Calidris himantopus 53.8 133 10 invertebrates 2 de Leon and Smith 1999

Calidris minutilla 22 358 6 invertebrates 10.00 de Leon and Smith 1999

Calidris pusilla 27.5 159 8 invertebrates 8 de Leon and Smith 1999 9

Haematopus ostralegus 526 159 5 invertebrates 17.00 Goss-Custard et al. 1999

Serinus serinus 11.2 35 30 seeds 63.00 Domènech and Senar 1999

Anser albifrons 2700 211 142 vegetation 15.5 Kristiansen et al. 2000

Emberiza citrinella 29.7 226 100 seeds 25.00 van der Veen 2000

Myiopsitta monachus 120 79 31 seeds 68.00 20 South and Pruett-Jones 2000

Numenius americanus 640 17 1 invertebrates 1.10 1.10 3.4 Mathis 2000

Somateria mollissima 2218 117 22 invertebrates 25.3 1 Beauchamp 2000

Anas clypeata 620 33 65 mixed 12 Guillemain et al. 2001

Anas crecca crecca 320 47 23 seeds 21.00 Guillemain et al. 2001

Corvus caurinus 415 571 80 invertebrates 50.00 20 Robinette and Ha 2001

Junco hyemalis 19.3 625 35 seeds 58.00 15 Boysen et al. 2001

Anas clypeata 620 32 13 mixed 8 Guillemain et al. 2002

Anas penelope 680 45 50 vegetation 14 Guillemain et al. 2002

Anas platyrhynchos 1082 12 12 seeds 8.30 Fritz et al. 2002

Emberiza elegans 17 43 10 seeds 32.00 24 Yamaguchi and Yahara 2002 10

Limosa limosa 252 535 30 invertebrates 20.00 10.00 Dominguez 2002

Somateria mollissima 2218 233 3 invertebrates 57.00 40.00 Ost et al. 2002

Anser albifrons 2700 58 6790 seeds 7.20 0.2 Shimada and Shimada 2003

Anser cynoides 3575 34 120 vegetation 15.00 15.00 Randler 2003

Branta leucopsis 1788 172 3374 vegetation 3.00 Carbone et al. 2003

Bubulcus ibis 372 69 40 invertebrates 6.40 Wahungu et al. 2003

Colinus virgianus 178 25 20 seeds 15.00 Williams et al. 2003

Dromaius novaehollandiae 31500 17 41 seeds 73.70 9.50 Boland 2003

Fringilla coelebs 21.9 39 1 seeds 70.00 Cresswell et al. 2003

Grus grus 5500 203 10 mixed 19.00 Aviles 2003

Fernàndez-Juricic and Schroeder Patagioenas maculosa 309 30 20 seeds 66.00 37.00 2003

Phoenicopterus ruber ruber 3540 26 100 vegetation 43.40 10.40 Beauchamp and McNeil 2003

Rhea americana 23000 40 12 vegetation 12.00 2.00 Fernandez et al. 2003

Zenaida auriculata 131 30 20 seeds 46.00 19.00 Fernàndez-Juricic and Schroeder 11

2003

Fulica atra 902 25 80 vegetation 11.10 Randler 2004

Arenaria interpres 134 15 16 invertebrates 5 Vahl et al. 2005

Calidris canutus 148 10 16 invertebrates 3 Vahl et al. 2005

Cygnus columbianus 7200 214 100 vegetation 16.90 0.7 Badzinski 2005

Nettapus pulchellus 310 207 2 vegetation 6.50 1 Nye and Dickman 2005

Anser albifrons 2700 53 3700 seeds 25.11 1.11 3.7 Amano et al. 2006

Columbina squamata 52.9 142 19 seeds 6.67 1.00 Dias 2006

Acridotheres tristis 120 310 23 invertebrates 15.20 5.70 Newey 2007

Grus grus 5500 485 564 mixed Aviles and Bednekoff 2007

Molothrus ater 48.7 126 7 seeds 88.00 65.00 Fernàndez-Juricic et al. 2007

Morgan and Fernàndez-Juricic Molothrus ater 48.7 56 8 seeds 71.00 45.00 2007

Perdix perdix 418 122 13 seeds 54.30 12.70 Watson et al. 2007

Phoenicopterus ruber roseus 3540 117 350 vegetation 18.00 30.00 Boukhriss et al. 2007b 12

Phoenicopterus ruber roseus 3540 21 31 vegetation 25.79 4.48 1 Boukhriss et al. 2007a

Turdoides bicolor 78.3 84 11 invertebrates 14.00 Radford and Ridley 2007

Miliaria calandra 53.6 137 60 seeds 36.40 Smart et al. 2008

Spizella wortheni 13 41 30 mixed 54.20 Canales-Delgadillo et al. 2008

Tringa totanus 129 296 65 invertebrates 40.00 20.00 Sansom et al. 2008 13

References

ABRAMSON, M. 1979. Vigilance as a factor influencing flock formation among curlews

Numenius arquata. -Ibis, 121: 213-216.

ALONSO, J. A. and ALONSO, J. C. 1993. Age-related differences in time budgets and parental

care in wintering common cranes. -Auk, 110: 78-88.

ALONSO, J. A., ALONSO, J. C., CARRASCAL, L. M. and MUNOZPULIDO, R. 1994. Flock

size and foraging decisions in central place foraging white storks, Ciconia ciconia.

-Behaviour, 129: 279-292.

AMANO, T., USHIYAMA, K., FUJITA, G. and HIGUCHI, H. 2006. Costs and benefits of

flocking in foraging white-fronted geese (Anser albifrons): effects of resource depletion.

-J. Zool., 269: 111-115.

AVILES, J. M. 2003. Time budget and habitat use of the Common Crane wintering in dehesas of

southwestern Spain. -Can. J. Zool., 81: 1233-1238.

AVILES, J. M. and BEDNEKOFF, P. A. 2007. How do vigilance and feeding by common cranes

Grus grus depend on age, habitat, and flock size? -J. Avian Biol., 38: 690-697.

BADZINSKI, S. S. 2005. Social influences on Tundra Swan activities during migration.

-Waterbirds, 28: 316-325.

BARBOSA, A. 1995. Foraging strategies and their influence on scanning and flocking behaviour

of waders. -J. Avian Biol., 26: 182-186.

BARBOSA, A. 1997. The effects of predation risk on scanning and flocking behavior in dunlin.

-J. Field Ornithol., 68: 607-612.

BARNARD, C. J. 1980. Flock feeding and time budgets in the house sparrow (Passer domesticus

L.). -Anim. Behav., 28: 295-309.

BEAUCHAMP, G. 2000. Parental behaviour and brood integrity in amalgamated broods of the

Common Eider. -Wildfowl, 51: 169-179. 14

BEAUCHAMP, G. and LIVOREIL, B. 1997. The effect of group size on vigilance and feeding

rate in spice finches (Lonchura punctulata). -Can. J. Zool., 75: 1526-1531.

BEAUCHAMP, G. and MCNEIL, R. 2003. Vigilance in Greater Flamingos foraging at night.

-Ethology, 109: 511-520.

BEKOFF, M. 1995. Vigilance, flock size, and flock geometry - Information gathering by western

evening grosbeaks (Aves, Fringillidae). -Ethology, 99: 150-161.

BÉLANGER, L. and BÉDARD, J. 1992. Flock composition and foraging behaviour of gretaer

snow geese (Chen caerulescens atlantica). -Can. J. Zool., 70: 2410-2415.

BENKMAN, C. W. 1997. Feeding behavior, flock-size dynamics, and variation in sexual

selection in crossbills. - Auk, 114: 163-178.

BERTRAM, B. C. R. 1980. Vigilance and group size in ostriches. -Anim. Behav., 28: 278-286.

BEVERIDGE, F. M. and DEAG, J. M. 1987. The effects of sex, temperature and companions on

looking up and feeding in single and mixed species flocks of house sparrows (Passer

domesticus), chaffinches (Fringilla coelebs) and starlings (Sturnus vulgaris). -Behaviour,

100: 303-320.

BILDSTEIN, K. L. 1983. Age-related differences in the flocking and foraging behavior of white

ibises in a South Carolina salt marsh. -Col. Waterbirds, 6: 45-53.

BLACK, J. M., CARBONE, C., WELLS, R. L. and OWEN, M. 1992. Foraging dynamics in

goose flocks: the cost of living on the edge. -Anim. Behav., 44: 41-50.

BOLAND, C. R. J. 2003. An experimental test of predator detection rates using groups of free-

living emus. -Ethology, 109: 209-222.

BOUKHRISS, J., SELMI, S., BECHET, A. and NOUIRA, S. 2007a. Vigilance in Greater

Flamingos wintering in southern Tunisia: Age-dependent flock size effect. -Ethology,

113: 377-385. 15

BOUKHRISS, J., SELMI, S. and NOUIRA, S. 2007b. Time allocation and vigilance behaviour of

Greater Flamingos (Phoenicopterus roseus) wintering in the Gulf of Gabes, Tunisia.

-Ostrich, 78: 459-461.

BOYSEN, A. F., LIMA, S. L. and BAKKEN, G. S. 2001. Does the thermal environment

influence vigilance behavior in dark-eyed juncos (Junco hyemalis)? An approach using

standard operative temperature. -Journal of Thermal Biology, 26: 605-612.

BRIGGS, S. G. 1990. Sexual and annual differences in activity budgets of maned ducks

Chenonetta jubata. -Emu, 90: 190-194.

BURGER, A. E. 1982. Foraging behaviour of lesser sheathbills Chionis minor exploiting

invertebrates on a sub-antarctic island. -Oecologia, 52: 236-245.

BURGER, J. 1997. Vigilance behavior and chickens: Differences among status and location.

-Appl. Anim. Behav. Sci., 54: 345-350.

BURGER, J. and GOCHFELD, M. 1988. Effects of group size and sex on vigilance in ostriches

(Struthio camelus): antipredator strategy or mate competition? -Ostrich, 59: 14-20.

BURGER, J. and GOCHFELD, M. 1991a. Human activity influence and diurnal and nocturnal

foraging of sanderlings (Calidris alba). -Condor, 93: 259-265.

BURGER, J. and GOCHFELD, M. 1991b. Vigilance and feeding behaviour in large feeding

flocks of laughing gulls, Larus atricilla, on Delaware Bay. -Estuarine, Coastal and Shelf

Science, 32: 207-212.

CANALES-DELGADILLO, J. C., SCOTT-MORALES, L. M., CORREA, M. C. and MORENO,

M. P. 2008. Observations on flocking behavior of Worthen's Sparrow (Spizella wortheni)

and occurrence in mixed-species flocks. -Wilson J. Ornithol, 120: 569-574.

CARACO, T. 1979. Time budgeting and group size: a test of theory. -Ecology, 60: 618-627.

CARACO, T., MARTINDALE, S. and PULLIAM, H. R. 1980. Avian time budgets and distance

from cover. -Auk, 97: 872-875. 16

CARBONE, C., THOMPSON, W. A., ZADORINA, L. and ROWCLIFFE, J. M. 2003.

Competition, predation risk and patterns of flock expansion in barnacle geese (Branta

leucopsis). -J. Zool., 259: 301-308.

CARRASCAL, L. M., ALONSO, J. C. and ALONSO, J. A. 1990. Aggregation size and foraging

behaviour of white storks Ciconia ciconia during the breeding season. -Ardea, 78: 399-

404.

CARRASCAL, L. M. and MORENO, E. 1992. Scanning behaviour and spatial niche. -J.

Ornithol., 133: 73-77.

CRESSWELL, W., QUINN, J. L., WHITTINGHAM, M. J. and BUTLER, S. 2003. Good

foragers can also be good at detecting predators. -Proc. R. Soc. Lond. Ser. B-Biol. Sci,

270: 1069-1076.

DAVIS, C. A. and SMITH, L. M. 1998. Behavior of migrant shorebirds in Playas of the southern

high plains, Texas. -Condor, 100: 266-276.

DE LEON, M. T. and SMITH, L. M. 1999. Behavior of migrating shorebirds at North Dakota

Prairie Potholes. -Condor, 101: 645-654.

DIAS, R. I. 2006. Effects of position and flock size on vigilance and foraging behaviour of the

scaled dove Columbina squammata. -Behav. Proc., 73: 248-252.

DIAZ, J. A. and ASENSIO, B. 1991. Effects of group size and distance to protective cover on the

vigilance behaviour of black-billed magpies (Pica pica). -Bird Study, 38: 38-41.

DOMÈNECH, J. and SENAR, J. C. 1999. Are foraging serin Serinus serinus females more

vigilant than males?: The effect of sex ratio. -Ardea, 87: 277-284.

DOMINGUEZ, J. 2002. Biotic and abiotic factors affecting the feeding behavior of the Black-

tailed Godwit. -Waterbirds, 25: 393-400.

DRENT, R. and SWIESTRA, P. 1977. Goose flocks and food finding: field experiments with

barnacle geese in winter. -Wildfowl, 28: 15-20. 17

EBBINGE, B., CANTERS, K. and DRENT, R. H. 1975. Foraging routines and estimated daily

food intake in barnacle geese wintering in the northern Netherlands. -Wildfowl, 26: 5-19.

EKMAN, J. 1987. Exposure and time use in willow tit flocks: the cost of subordination. -Anim.

Behav., 35: 508-514.

ELCAVAGE, P. and CARACO, T. 1983. Vigilance behaviour in house sparrow flocks. -Anim.

Behav., 31: 303-304.

ELGAR, M. A., BURREN, P. J. and POSEN, M. 1984. Vigilance and perception of flock size in

foraging house sparrows Passer domesticus L. -Behaviour, 90: 215-223.

ELY, C. R. 1992. Time allocation by greater white-fronted geese: influence of diet, energy

reserves and predation. -Condor, 94: 857-870.

FERGUSON, J. W. H. 1987. Vigilance behaviour in white-browed sparrow-weavers Plocepasser

mahali. -Ethology, 76: 223-235.

FERNÀNDEZ-JURICIC, E., BEAUCHAMP, G. and BASTAIN, B. 2007. Group-size and

distance-to-neighbour effects on feeding and vigilance in brown-headed cowbirds. -Anim.

Behav., 73: 771-778.

FERNÀNDEZ-JURICIC, E. and SCHROEDER, N. 2003. Do variations in scanning behavior

affect tolerance to human disturbance? -Appl. Anim. Behav. Sci., 84: 219-234.

FERNANDEZ, G. J., CAPURRO, A. F. and REBOREDA, J. C. 2003. Effect of group size on

individual and collective vigilance in greater rheas. -Ethology, 109: 413-425.

FRITZ, H., GUILLEMAIN, M. and DURANT, D. 2002. The cost of vigilance for intake rate in

the mallard (Anas platyrhynchos): An approach through foraging experiments. -Ethol.

Ecol. Evol., 14: 91-97.

GAUTHIER, G., BÉDARD, Y. and BÉDARD, J. 1988. Habitat use and activity budgets of

greater snow geese in spring. -Journal of Wildlife Management, 52: 191-201. 18

GAWLIK, D. E. and SLACK, R. D. 1996. Comparative foraging behavior of sympatric snow

geese, greater white-fronted geese, and Canada geese during the non-breeding season.

-Wilson Bull., 108: 154-159.

GLÜCK, E. 1987. An experimental study of feeding, vigilance and predator avoidance in a single

bird. -Oecologia, 71: 268-272.

GOSS-CUSTARD, J. D., CAYFORD, J. T. and LEA, S. G. 1999. Vigilance during food handling

by oystercatchers Haematopus ostralegus reduces the chances of losing prey to

kleptoparasites. -Ibis, 141: 368-376.

GUILLEMAIN, M., DUNCAN, P. and FRITZ, H. 2001. Switching to a feeding method that

obstructs vision increases head-up vigilance in dabbling ducks. -J. Avian Biol., 32: 345-

350.

GUILLEMAIN, M., MARTIN, G. R. and FRITZ, H. 2002. Feeding methods, visual fields and

vigilance in dabbling ducks (Anatidae). -Func. Ecol., 16: 522-529.

HEGNER, R. E. 1985. Dominance and anti-predator behaviour in blue tits (Parus caeruleus).

-Anim. Behav., 33: 762-768.

HEINSOHN, R. G. 1987. Age-dependent vigilance in winter aggregations of cooperatively

breeding white-winged choughs (Corcorax melanorhamphos). -Behav. Ecol. &

Sociobiol., 20: 303-306.

HOGSTAD, O. 1988. Advantages of social foraging of willow tits Parus montanus. -Ibis, 130:

275-283.

HOUGH, D., WONG, B., BENNETT, G., BRETTSCHNEIDER, K., SPINNOCHIA, M.,

MANION, N. and HEINSOHN, R. 1998. Vigilance and group size in emus. -Emu, 98:

324-327.

HUNT, H. E. 1987. The effects of burning and grazing on habitat use by Whooping Cranes and

Sandhill Cranes on the Aransas National Wildlife Refuge. Texas A&M University. 19

INGLIS, I. R. and ISAACSON, A. J. 1978. The responses of dark-bellied brent geese (Branta

bernicla bernicla) to models of geese in various postures. -Anim. Behav., 26: 953-958.

INGLIS, I. R. and LAZARUS, J. 1981. Vigilance and flock size in brent geese: the edge effect.

-Zeitschrift fur Tierpsychologie, 57: 193-200.

JENNINGS, T. and EVANS, S. M. 1980. Influence of position in the flock and flock size on

vigilance in the starling, Sturnus vulgaris. -Anim. Behav., 28: 634-635.

JORDE, D. G., KRAPU, G. L. and CRAWFORD, R. D. 1983. Feeding ecology of Mallards

wintering in Nebraska. -Journal of Wildlife Management, 47: 1044-1053.

KNIGHT, S. K. and KNIGHT, R. L. 1986. Vigilance patterns in bald eagles feeding in groups.

-Auk, 103: 263-272.

KOTRSCHAL, K., HEMETSBERGER, J. and DITTAMI, J. 1993. Food exploitation by a winter

flock of greylag geese: behavioral dynamics, competition and social status. -Behav. Ecol.

& Sociobiol., 33: 289-295.

KRAMS, I. 1998. Dominance-specific vigilance in the great tit. -J. Avian Biol., 29: 55-60.

KRISTIANSEN, J. N., FOX, A. D., BOYD, H. and STROUD, D. A. 2000. Greenland white-

fronted geese Anser albifrons flavivostris benefit from feeding in mixed-species flocks.

-Ibis, 142: 142-144.

LAZARUS, J. 1978. Vigilance, flock size and domain of danger in the white-fronted goose.

-Wildfowl, 29: 135-145.

LAZARUS, J. and INGLIS, I. R. 1978. The breeding behaviour of the pink-footed goose:

parental care and vigilant behaviour during the feeding period. -Behaviour, 65: 62-88.

LENDREM, D. W. 1984. Flocking, feeding and predation risk: absolute and instantaneous

feeding rates. -Anim. Behav., 32: 298-299.

LIMA, S. L. 1987. Distance to cover, visual obstructions, and vigilance in house sparrows.

-Behaviour, 102: 231-238. 20

LIMA, S. L. 1995. Back to the basics of anti-predatory vigilance: the group-size effect. -Anim.

Behav., 49: 11-20.

MARTELLA, M. B., RENISON, D. and NAVARRO, J. L. 1995. Vigilance in the greater rhea:

effect of vegetation height and group size. -J. Field Ornithol., 66: 215-220.

MATHIS, R. L. 2000. Analysis of Long-billed Curlews (Numenius americanus) distributions at

three special scales. Humboldt State University, Arcata.

MCKINSTRY, M. C. and KNIGHT, R. L. 1993. Foraging ecology of wintering black-billed

magpies. -Auk, 110: 632-635.

MCVEAN, A. and HADDLESEY, P. 1980. Vigilance schedules among house sparrows Passer

domesticus. -Ibis, 122: 533-536.

MILLIGAN, B. N. and BRIGHAM, R. M. 1992. The influence of group size on vigilance in

captive-raised ring-necked pheasants. -Condor, 94: 787-790.

MORENO, E. and CARRASCAL, M. 1991. Patch residence time and vigilance in birds foraging

at feeders: implications of bill shape. -Ethol. Ecol. Evol., 3: 345-350.

MORGAN, T. and FERNÀNDEZ-JURICIC, E. 2007. The effects of predation risk, food

abundance, and population size on group size of brown-headed cowbirds (Molothrus

ater). -Ethology, 113: 1173-1184.

MORRIS, D. L. and THOMPSON, F. R. 1998. Effects of habitat and invertebrate density on

abundance and foraging behavior of brown-headed cowbirds. -Auk, 115: 376-385.

MOURITSEN, K. N. 1992. Predator avoidance in night feeding dunlins Calidris alpina: a matter

of concealment. -Ornis Scand., 23: 195-198.

NEWEY, P. 2007. Foraging behaviour of the Common Myna (Acridotheres tristis) in relation to

vigilance and group size. -Emu, 107: 315-320.

NYE, E. R. and DICKMAN, C. R. 2005. Activity budgets and habitat use of the green pygmy-

goose (Nettapus pulchellus) on dry-season refuges in Kakadu National Park, Northern

Territory. -Emu, 105: 217-222. 21

OST, M., MANTILA, L. and KILPI, M. 2002. Shared care provides time-budgeting advantages

for female eiders. -Anim. Behav., 64: 223-231.

OWEN, M. 1972. Some factors affecting food intake and selection in white-fronted geese. -J.

Anim. Ecol., 41: 79-92.

PAULUS, S. L. 1984. Activity budgets of non-breeding gadwalls in Louisiana. -Journal of

Wildlife Management, 48: 371-380.

PAULUS, S. L. 1988. Time-activity budgets of mottled ducks in Louisiana in winter. -Journal of

Wildlife Management, 52: 711-718.

PETIT, D. R. and BILDSTEIN, K. L. 1987. Effect of group size and location within the group on

the foraging behavior of white ibises. -Condor, 89: 602-609.

POWELL, G. V. N. 1974. Experimental analysis of the social value of flocking by starlings

(Sturnus vulgaris) in relation to predation and foraging. -Anim. Behav., 22: 501-505.

PÖYSÄ, H. 1994. Group foraging, distance to cover and vigilance in the teal, Anas crecca.

-Anim. Behav., 48: 921-928.

RADFORD, A. N. and RIDLEY, A. R. 2007. Individuals in foraging groups may use vocal cues

when assessing their need for anti-predator vigilance. -Biol. Lett, 3: 249-252.

RANDLER, C. 2003. Vigilance in urban Swan Geese and their hybrids. -Waterbirds, 26: 257-

260.

RANDLER, C. 2004. Coot benefit from feeding in close proximity to geese. -Waterbirds, 27:

240-244.

REBOREDA, J. C. and FERNANDEZ, G. J. 1997. Sexual, seasonal and group size differences in

the allocation of time between vigilance and feeding in the greater rhea, Rhea americana.

-Ethology, 103: 198-207.

REDPATH, S. 1988. Vigilance levels in preening dunlin Calidris alpina. -Ibis, 130: 213-216.

ROBINETTE, R. L. and HA, J. C. 2001. Social and ecological factors influencing vigilance by

northwestern crows, Corvus caurinus. -Anim. Behav., 62: 447-452. 22

ROSS, E. J. and DEEMING, D. C. 1998. Feeding and vigilance behaviour of breeding ostriches

(Struthio camelus) in a farming environment in Britain. -British Poultry Science, 39: 173-

177.

SADEDIN, S. R. and ELGAR, M. A. 1998. The influence of flock size and geometry on the

scanning behaviour of spotted turtle doves, Streptopelia chinensis. -Australian Journal of

Ecology, 23: 177-180.

SAINO, N. 1994. Time budget variation in relation to flock size in carrion crows, Corvus corone

corone. -Anim. Behav., 47: 1189-1196.

SANSOM, A., CRESSWELL, W., MINDERMAN, J. and LIND, J. 2008. Vigilance benefits and

competition costs in groups: do individual redshanks gain an overall foraging benefit?

-Anim. Behav., 75: 1869-1875.

SCHMITZ, R. A. and BALDASSARRE, G. A. 1992. Correlates of flock size and behavior of

foraging American flamingos following hurricane Gilbert in Yucatan, Mexico. -Condor,

94: 260-264.

SHIMADA, T. and SHIMADA, K. 2003. Factors affecting vigilance in greater white-fronted

geese Anser albifrons. -Wildfowl, 54: 201-218.

SMART, S. L., STILLMAN, R. A. and NORRIS, K. J. 2008. Measuring the functional responses

of farmland birds: an example for a declining seed-feeding bunting. -J. Anim. Ecol., 77:

687-695.

SOUTH, J. M. and PRUETT-JONES, S. 2000. Patterns of flock size, diet, and vigilance of

naturalized monk parakeets in Hyde Park, Chicago. -Condor, 102: 848-854.

SPARLING, D. W. and KRAPU, G. L. 1994. Communal roosting and foraging behavior of

staging sandhill cranes. -Wilson Bull., 106: 62-77.

STUDD, M., MONTGOMERIE, R. D. and ROBERTSON, R. J. 1983. Group size and predator

surveillance in foraging house sparrows (Passer domesticus). -Can. J. Zool., 61: 226-231. 23

SULLIVAN, K. A. 1984. The advantages of social foraging in downy woodpeckers. -Anim.

Behav., 32: 16-22.

TACHA, T. C. 1989. Social organization of Sandhill cranes from midcontinental North America.

-Wildl. Monogr., 99.

TURNBULL, R. E. and BALDASSARE, G. A. 1987. Activity budgets of mallards and American

wigeons wintering in east-central Alabama. -Wilson Bull., 99: 457-464.

VAHL, W. K., VAN DER MEER, J., WEISSING, F. J., VAN DULLEMEN, D. and PIERSMA,

T. 2005. The mechanisms of interference competition: two experiments on foraging

waders. -Behav. Ecol., 16: 845-855.

VAN DER VEEN, I. T. 2000. Daily routines and predator encounters in Yellowhammers

Emberiza citrinella in the field during winter. -Ibis, 142: 413-420.

WAHUNGU, G. M., MUMIA, E. N. and MANOA, D. 2003. The effects of flock size, habitat

type and cattle herd sizes on feeding and vigilance in cattle egrets (Ardeola ibis). -Afr. J.

Ecol., 41: 287-288.

WAITE, R. K. 1981. Local enhancement for food finding by rooks (Corvus frugilegus) foraging

on grassland. -Z. Tierpsychol., 57: 15-36.

WARD, C. and LOW, B. S. 1997. Predictors of vigilance for American crows foraging in an

urban environment. -Wilson Bull., 109: 481-489.

WATSON, M., AEBISCHER, N. J. and CRESSWELL, W. 2007. Vigilance and fitness in grey

partridges Perdix perdix: the effects of group size and foraging-vigilance trade-offs on

predation mortality. -J. Anim. Ecol., 76: 211-221.

WESTCOTT, D. A. and COCKBURN, A. 1988. Flock size and vigilance in parrots. -Australian

J. Zool., 36: 335-349.

WILLIAMS, C. K., LUTZ, R. S. and APPLEGATE, R. D. 2003. Optimal group size and northern

bobwhite coveys. -Anim. Behav., 66: 377-387. 24

YAMAGUCHI, N. and YAHARA, T. 2002. Factors causing variation in flock size: Decision

making to join a foraging flock. -Ecological Research, 17: 361-371.

YOUNG, A. D. 1989. Spacing behaviour of visual- and tactile-feeding shorebirds in mixed-

species groups. -Can. J. Zool., 67: 2026-2028.

Recommended publications