Introduction - New Jersey Audubon Society

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Roost Characteristics • All 8 were in mid-sized trees • All 8 were next to water – 6 of 8 near ~ freshwater – Observed drinking • Only 2 of 8 were on an island • Closest together: 2.5 km
Species Composition • In addition to Great Egrets: – Gr. Blue Heron: at least 4 of 8 roosts (low #’s) – B.C. Night-heron: at least 4 of 8 roosts (#’s varied) – D.C. Cormorant: 2 of 8 (large #’s at one, not other) – Snowy Egret: 2 of 8 (separate area in Cormorants outnumber Kearny) Great Egrets at the Lake Matawan roost Snowy Egrets at the Kearny Roost sleep Separately from the Greats. Great Egrets at the Kearny Roost.
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Heron and Egret Surveys 2013 Citize
Page 3 and 4:
Citizen Science • Through Citizen
Page 5 and 6:
Shorebird Surveys Ongoing
Page 7 and 8:
Nightjar Surveys Northeast Coordina
Page 9 and 10:
Heron Surveys
Page 11 and 12:
NJA Heron Survey Objectives • To
Page 13 and 14:
What is a colony? • Breeding aggr
Page 15 and 16:
Harbor Heron Breeding Colonies (Roo
Page 17 and 18:
Harbor Heron Feeding Areas • Bird
Page 19 and 20: Where do birds from each island go
Page 22 and 23: Where do birds from each island go
Page 24 and 25: Where do they go?? • Counts at fo
Page 26 and 27: Survey Sites NJA (2008-2012) • 45
Page 28 and 29: Non-nesting habitat use • What ar
Page 30: 2012 28 NJA and 15 NYCA volunteers
Page 45 and 46: Using surveys of foraging areas as
Page 47 and 48: Total # of GREG Observed Abundance
Page 49 and 50: 12 km 3 km
Page 51 and 52: Temporal changes • Changes in sit
Page 53 and 54: 80 Seasonal use of all sites - 2010
Page 55 and 56: 35 Seasonal use by Great Egrets in
Page 57 and 58: 2013 Activities • “Harbor Heron
Page 59 and 60: What is an ‘Autumnal Roost’?
Page 61 and 62: Photo by Allen Woodliffe
Page 64 and 65: Methods: Monitoring • Based on Ch
Page 66 and 67: Foraging Birds
Page 69: Thanks to the NYC and NJ Audubon vo
Page 73 and 74: Kearny Roost Our largest roost, it
Page 75 and 76: Cheesequake Roost Our 3 rd largest
Page 77 and 78: Reaction to Disturbance Cheesequake
Page 79 and 80: Timing of Roost Entry & Exit
Page 81: Roost monitoring • Liz Vreeland p
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Introduction - New Jersey Audubon Society

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