McGregor, P.K. and A.G. Horn.
2014. Communication Networks. In J. Krause, D. Croft, and D.
James (eds.) Animal Social Networks: Perspectives and
Challenges. Oxford University Press.
McGregor, P.K., A.G. Horn, M.L. Leonard, and F. Thomsen. 2013.
Anthropogenic noise and conservation. In H. Brumm (ed.) Animal
Communication and Noise. Springer Verlag, Berlin.
Horn, A.G. and P.K. McGregor. 2013. Information and influence in
animal communication networks. In U. Stegmann (ed.) Animal
Communication Theory. Cambridge University Press.
Horn, A.G. and M.L. Leonard. 2010. Parent-offspring signaling.
In M. Breed and J. Moore (eds.), Encyclopedia of Animal
Behavior. Elsevier Inc., Philadelphia.
Horn, A.G. and M.L. Leonard. 2005.
Nestling begging as a communication network. In P.K. McGregor
(ed.), Communication Networks and Animal Communication.
Cornell Univ. Press, Ithaca, NY.
Horn, A.G. and M.L Leonard. 2002.
Efficacy and the design of begging signals. In J.
Wright and M.L. Leonard (eds.), The Evolution of
Begging. Kluyver Academic Press, Dordrecht. Pp. 127-141.
Horn, A.G. 1997. Speech acts and animal
signals. In D.W. Owings, M.D. Beecher, and N. Thompson
(eds.), Perspectives in Ethology, Vol. 12, pp. 347-358.
Horn, A.G. and J.B. Falls. 1996. Categorization and
the design of signals. In D.E. Kroodsma and T.E. Miller
(eds.), Ecology and Evolution of Acoustic Communication in
Birds, pp. 121-135. Cornell Univ. Press, Ithaca, NY.
Staicer, C., D. Spector, and A.G. Horn. 1996.
Patterns of diel singing behavior in birds. In D.E.
Kroodsma and T.E. Miller (eds.), Ecology and Evolution of
Acoustic Communication in Birds, pp. 426-453. Cornell
Univ. Press, Ithaca, NY.
Horn, A.G. 1992. Field methods for studying the
perception of song types by birds. In P.K. McGregor (ed.),
Playback experiments: issues and prospects, pp. 191-200.
Plenum, New York.
P.K. McGregor, C.K. Catchpole, T. Dabelsteen, J.B. Falls, C.
Gerhardt, A.G. Horn, M. Lambrechts, D. Kroodsma, K. McComb, I.
Pepperberg, L.M. Ratcliffe, W. Searcy, and D. Weary.
1992. Issues in playback: the Thornbridge Hall
consensus. In P.K. McGregor (ed.), Playback experiments:
issues and prospects. Plenum, New York.
Ronconi, R. A., J. R. Stephens, Z.
J. Crysler, I. L. Pollet, D. T. Fife, A. G. Horn, and P. D.
Taylor. 2015. Distribution, abundance and trends of gulls and
terns breeding on Sable Island, Nova Scotia, Canada. Waterbirds
[conditional acceptance]
Haff, T. M., A. G. Horn, M. L. Leonard, and R. D. Magrath. 2014.
Conspicuous calling near cryptic nests: a review of hypotheses
and a field study on white-browed scrubwrens. J. Avian Biol.
DOI: 10.1111/jav.00622
McIntyre, E., M. L. Leonard, and A. G. Horn. 2014. Do nestling
Tree Swallows (
Tachycineta bicolor) respond to parental
alarm calls? The Auk 131: 314-320.
Reers, H., M. Leonard, A. Horn, and A. Jacot. 2014.
Parent-environmental interactions shape acoustic signatures in
tree swallows: a cross-fostering experiment. Journal of Avian
Biology 45: 123-130.
Winkler, D.W., K.M. Ringelman, P. O. Dunn, L. Whittingham, D. J.
T. Hussell, R. G. Clark, R. D. Dawson, L.S. Johnson, A. Rose, S.
H. Austin, W. D. Robinson, M. P. Lombardo, P. A. Thorpe, D.
Shutler, R. J. Robertson, M. Stager, M. Leonard, A. G. Horn, J.
Dickinson, V. Ferretti, V. Massoni, F. Bulit, J. C. Reboreda, M.
Liljesthr�m, M. Quiroga, E. Rakhimberdiev, and D. R. Ardia.
2014. Latitudinal variation in clutch size-lay date regressions
in Tachycineta swallows: effects of food supply or demography?
Ecography 37:001-009.
McIntyre, E., M. L. Leonard, and A. G. Horn. 2013. Ambient noise
and parental communication of predation risk in tree swallows,
Tachycineta bicolor. Animal Behaviour 87: 85-89.
Laughlin, A.J., C. M. Taylor, D. W. Bradley, D. Leclair, R. G.
Clark , R. D. Dawson , P. O. Dunn , A. Horn , M. Leonard, D. R.
Sheldon, D. Shutler, L. A. Whittingham, D. W. Winkler, D. R.
Norris. 2013. Integrating information from geolocators,
weather radar and citizen science to uncover a key stopover area
for an aerial insectivore. The Auk 130: 23-239.
Fairhurst, L., A. G. Horn, and M. L. Leonard. 2013. Nest
acoustics and begging call structure in nestling tree swallows.
Animal Behaviour 85: 917-923.
Lucas, Z., A. Horn, and B. Freedman. 2012. Beached bird surveys
on Sable Island, Nova Scotia, 1993 to 2009, show a decline in
the incidence of oiling. Proceedings of the Nova Scotia
Institute of Science 47: 91-129.
Zanette, L., M. Clinchy, M.L. Leonard, A.G. Horn, D.T. Haydon,
and E. Hampson. 2012. Brood-parasite-induced female-biased
mortality affects songbird demography: negative implications for
conservation. Oikos 121: 1493-1500.
Farmer, R.G., M.L. Leonard, and A.G. Horn. 2012. Observer
effects and avian call count survey quality: rare-species biases
and overconfidence. The Auk 129: 76-86.
Leonard, M.L. and A.G. Horn. 2012. Ambient noise increases
missed detections in nestling birds. Biology Letters 8: 530-532.
Shutler, D., D. Hussell, R. Norris, D. Winkler, R. Robertson, F.
Bonier, W. Rendell, M. B�lisle, R. Clark, R. Dawson, N.
Wheelwright, M. Lombardo, P. Thorpe, M. Truan, R. Walsh, M.
Leonard, A. Horn, C. Vleck, D. Vleck, A. Rose, L. Whittingham,
P. Dunn, K. Hobson, and M. Stanback. 2011. Spatiotemporal
Patterns in Nest Box Occupancy by Tree Swallows Across North
America. Avian Conservation and Ecology 7: 3.
http://dx.doi.org/10.5751/ACE-00517-070103
Marques, P., M.L. Leonard, A.G. Horn and A. Contasti. 2011. How
nestling tree swallows (Tachycineta bicolor) integrate their
responses to hunger and signalling by nestmates. Ethology 117:
163-170.
Magrath, R.D, T.M. Haff, A.G. Horn and M.L. Leonard. 2010.
Calling in the face of danger? How predation risk affects
acoustic communication by parent birds and their offspring. Adv.
Stud. Behav. 41:187-253.
Leonard, M.L., A.G. Horn and A. Dorland. 2009. Does begging call
convergence increase feeding rates to nestling tree swallows? J.
Avian Biol. 40: 243-247.
Horn, A.G. and M.L. Leonard. 2008. Acoustic interactions in
broods of nestling birds (Tachycineta bicolor). J. Comp.
Psychol. 122: 298-304.
Leonard, M. L. and A.G. Horn. 2006. Age-related
changes in signaling of need by nestling tree swallows
(Tachycineta bicolor). Ethology 112: 1020-1026.
Leonard, M.L. and A.G. Horn.
2005. Ambient noise and the design of begging signals. Proc.
Roy. Soc., Biol. Sci. 272: 651-656.
Leonard, M.L., A.G. Horn, and A. Mukhida. 2005. False alarms
and begging in nestling birds. Anim. Behav. 69: 701-708.
Zink, R.M., J.D. Rising, S. Mockford, A.G. Horn, J.M. Wright,
M. Leonard, and M.C. Westburg. 2005. Mitochondrial DNA
variation, species limits, and rapid evolution of plumage
coloration and size in the Savannah Sparrow. Condor 107:
21-28.
Shutler, D., M.L. Leonard, A.G. Horn, R. Shutler, and D.J.T.
Hussell. 2004. Breeding between Tree Swallows from the same
brood. J. Field Ornith. 74: 353-358.
Leonard, M. L., Horn, A. G.
& Porter, J. 2003 Does begging affect growth
in nestling tree swallows, Tachycineta bicolor? Behav. Ecol.
Sociobiol. 54: 573-577.
Leonard, M.L., A.G. Horn, and E. Parks. 2003. The role of
posturing and calling in the begging display of nestling
birds. Behav. Ecol. Sociobiol. 54: 188-193.
Maurer, G., R. Magrath, M.L. Leonard, A.G. Horn, and C.
Donnelly. 2003. Begging to differ: scrubwren nestlings beg to
alarm calls and vocalize when parents are absent. Anim. Behav.
65: 1045-1055.
Leonard, M.L. and A.G. Horn.
2001. Acoustic signalling of hunger and thermal state by
nestling tree swallows. Anim. Behav. 61: 87-93.
Leonard, M.L. and A.G.
Horn. 2001. Begging calls and parental feeding decisions
in tree swallows (Tachycineta bicolor). Behav. Ecol.
Sociobiol. 49: 170-175.
Leonard, M.L. and A.G. Horn. 2001. Begging in the
absence of parents by nestling tree swallows. Behav. Ecol. 12:
501-505.
Leonard, M.L. and A.G. Horn.
2001. Dynamics of calling by tree swallow (Tachycineta
bicolor) nestmates. Behav. Ecol. Sociobiol. 50: 430-435.
Leonard, M.L., A. G. Horn, A. Gozna
and S. Ramen. 2000. Brood size and begging intensity in
nestling tree swallows. Behav. Ecol. 196-201.
Leonard, M.L. and A.G. Horn.
1998. Need and nestmates affect begging in tree
swallows. Behav. Ecol. 42: 431-436.
Leonard, M.L., A.G. Horn, C. Brown,
and N. Fernandez. 1997. Parent-offspring
recognition in tree swallows. Anim. Behav. 54:
1107-1116.
Horn, A. 1996. Dawn
song repertoires of tree swallows. Can. J. Zool. 74:
1084-1091.
Leonard, M.L. and A.G.
Horn. 1996. Provisioning rules in tree swallows.
Behav. Ecol. Sociobiol. 38: 341-347.
Leonard, M.L., J.L. Dickinson, A.G. Horn, and W.D. Koenig.
1996. An experimental test of offspring recognition in
western bluebirds. Auk 112: 1062-1064.
Horn, A.G., M.L. Leonard, and D.M.
Weary. 1995. Oxygen consumption during crowing by
roosters: talk is cheap. Anim. Behav. 50: 1171-1175.
Leonard, M.L., A.G. Horn, and W.R. Fairfull. 1995. Causes and
consequences of allopecking in white leghorn
chickens. Appl. Anim. Behav. Sci. 43:17-26.
Martin, K., Horn, A.G., and S.J. Hannon. 1995. The calls and
associated behavior of breeding willow ptarmigan in
Canada. Wilson Bull. 107: 496-509.
Leonard, M.L. and A.G. Horn. 1995.
Crowing in relation to status in roosters. Anim. Behav.
49: 1283-1290.
Leonard, M.L., K. Teather, A.G. Horn, W. Koenig, and J.
Dickinson. 1994. Sex-biassed provisioning in western
bluebirds. Beh. Ecol. 5:355-359.
Horn, A.G., T.E. Dickinson, and J.B. Falls. 1993.
Repertoires and male quality in western meadowlarks (Sturnella
neglecta). Can. J. Zool. 71: 1059-1061.
Martin, K. and A.G. Horn. 1993. Clutch defense by
male and female willow ptarmigan. Ornis Scand. 24: 261-266.
Horn, A.G., M.L. Leonard, L. Ratcliffe, R. Weisman, and S.
Shackleton. 1992. Variation in the whistled songs
of black-capped chickadees. Auk 109: 847-852.
McGregor, P.K. and A.G. Horn. 1992. Strophe length
and response to playback in great tits. Anim. Behav. 43:
667-676.
Horn, A.G. and J.B. Falls. 1991. Song switching in
mate attraction and territory defense by western meadowlarks
(Sturnella neglecta). Ethology 87: 262-268.
Leonard, M.L., A.G. Horn, and L. Ratcliffe. 1991.
Parental aggression in black-capped chickadees. Behav.
Ecol. 2: 228-233.
Shackleton, S.A., L.M.
Ratcliffe, A.G. Horn, and C.T. Naugler. 1991. Song
repertoires of Harris' sparrows (Zonotrichia querula).
Can. J. Zool. 69: 1867-1874.
Leonard, M.L., A.G. Horn, and S.F. Eden. 1989. Does
juvenile helping in moorhens enhance breeder reproductive
success? A removal experiment. Behav. Ecol. Sociobiol. 25:
357-361.
Horn, A.G. and J.B. Falls. 1988. Structure of
western meadowlark (Sturnella neglecta) song repertoires.
Can. J. Zool. 66: 284-288.
Horn, A.G. and J.B. Falls. 1988. Repertoires and
countersinging in western meadowlarks (Sturnella
neglecta). Ethology 77: 337-343.
Horn, A.G. and J.B. Falls. 1988. Responses of
western meadowlarks to song repetition and contrast. Anim.
Behav. 36: 291-293.
Horn, A.G. 1988. Interspecific aggression in western
meadowlarks (Sturnella neglecta): re-directed aggression?
J. Field Ornithol. 59: 224-226.
Horn, A.G. and J.B. Falls. 1986. Western meadowlarks
switch song types when matched by playback. Anim. Behav.
34: 927-929.
Leonard, M.L., A.G.
Horn, and S.F. Eden. 1988. Parent-offspring
aggression in moorhens. Behav. Ecol. Sociobiol. 23:
265-270.
Eden, S.F., M.L. Leonard, and A.G. Horn. 1988. Food
provisioning lowers interclutch interval in moorhens Gallinula
chloropus. Ibis 131: 429-432.
Picman, J., M.L. Leonard, and A.G.
Horn. 1988. Anti-predation role of nest clumping
in red-winged blackbirds. Behav. Ecol. Sociobiol. 22:
9-15.
Weary, D.M., J.R. Krebs, R. Eddyshaw, P.K. McGregor, and A.G.
Horn. 1988. Decline in song output by great tits:
exhaustion or motivation? Anim. Behav. 36: 1242-1244.
Falls, J.B., A.G. Horn, and T.E. Dickinson. 1987.
How meadowlarks classify their songs: evidence from song
matching. Anim. Behav. 38: 579-585.
McGregor, P.K., A.G. Horn, and M.A. Todd. 1986. Are
familiar sounds ranged more accurately? Perceptual and
Motor Skills 61: 1082.
McLaren, I., and A.G. Horn. 2006.
The Ipswich Sparrow: past, present, and future. Birding 38:
52-59.