Field Note #15-16: two
for one
Photo By © Frank Schulenburg /, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=30717494
Date of Survey: 040816/041516
Official Low Tide:
3:43pm/10:14 am am
Tide heights: -.09ft/-2.7cm— .02ft/6cm
Mudflats exposed?
y/n
Temperature: 81°F/ 27°C Cloud cover: 20%/10%
Sunny light breeze. NICE!
|
Common Name
|
Counts of birds foraging on mud flats
|
Behavior
Forage-F
Rest/roost-R
Fly
over -FO
|
Disturbance
(Flushing-F,
displaced-D, agitated-A)
|
Feeding location
*Primary
flat (P)
Mangrove flat (M)
|
|
Snowy egret
|
2
|
F
|
|
M
|
|
Great blue heron
|
1
|
F,FO
|
|
M
|
|
Little blue heron
|
1
|
F. FO
|
D-H
|
M
|
|
white ibis
|
10
|
F, FO
|
D-H-1
|
M
|
|
Total
|
14
|
|
|
|
|
|
|
|
|
Notes: We
combined the past two week’s surveys due to very low bird counts.
Humans = 6 kayakers; 3 fisherman; 5 paddle boarders Total 14
Birds are not present when low tide is mid-day. Not even
humans were out much. Very hot. These species that are present in this park are
winter migrators, so any stragglers are most likely gone. The resident birds
that are breeding most likely are staying close to the nesting sites and this
is too far for them to forage. Breeding among south Florida's wading birds
peaks around April and May (We will continue to monitor through the summer, but
spend shorter time at the survey site. There are neglible numbers to warrant
staying for the full two hours.
Breeding times for
wading birds (taken from: https://edis.ifas.ufl.edu/uw309
)
Breeding periods for Florida's wading birds
(adapted from Kale and Maehr 2005)
|
Great Egret
|
January – June
|
|
Snowy Egret
|
December – August
|
|
Reddish Egret
|
December – June
|
|
Great Blue Heron
|
November – July
|
|
Tricolored Heron
|
February – July
|
|
Little Blue Heron
|
February – September
|
|
Black-crowned
Night-Heron
|
December – July
|
|
Yellow-crowned
Night-Heron
|
March – June
|
|
Green Heron
|
March – June
|
|
American Bittern
|
April – June
|
|
Least Bittern
|
March – July
|
|
Wood Stork
|
November – May
|
|
Roseate Spoonbill
|
March – May, November
– December
|
|
White Ibis
|
March – May
|
|
Glossy Ibis
|
May – July
|
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