Statements (63)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:bird
|
| gptkbp:bfsLayer |
5
|
| gptkbp:bfsParent |
gptkb:Franklin's_Gull
|
| gptkbp:adult_plumage |
brown and white
black cap white with gray wings |
| gptkbp:behavior |
gregarious
loyal to nesting sites |
| gptkbp:calls_for |
soft and plaintive
|
| gptkbp:color |
gptkb:black
white and gray black with a yellow tip |
| gptkbp:conservation_efforts |
habitat protection
pollution control |
| gptkbp:conservation_status |
gptkb:Least_Concern
|
| gptkbp:cultural_significance |
birdwatching interest
symbol of coastal ecosystems |
| gptkbp:diet |
gptkb:fish
insects |
| gptkbp:distribution |
gptkb:North_America
|
| gptkbp:egg_color |
pale blue
3.0–4.0 cm |
| gptkbp:family |
gptkb:Laridae
|
| gptkbp:first_described_by |
gptkb:John_James_Audubon
|
| gptkbp:fledging_period |
4–5 weeks
|
| gptkbp:foraging_behavior |
surface feeding
opportunistic feeder |
| gptkbp:genus |
Chroicocephalus
|
| gptkbp:habitat |
lakes and rivers
boreal forests Canada and northern United States prefer shallow waters. |
| https://www.w3.org/2000/01/rdf-schema#label |
Bonaparte's Gull
|
| gptkbp:launch_date |
22–26 days
|
| gptkbp:length |
30–36 cm
|
| gptkbp:lifespan |
up to 15 years
|
| gptkbp:mating_system |
displays and calls
|
| gptkbp:migration |
Atlantic Coast
varies by region Pacific Coast migratory studied by ornithologists |
| gptkbp:nesting |
ground-nesting
May to July affected by predation affected by environmental conditions |
| gptkbp:population_trend |
monitored by conservation groups
|
| gptkbp:predators |
larger birds
|
| gptkbp:related_species |
gptkb:Ring-billed_Gull
gptkb:Black-headed_Gull |
| gptkbp:research |
often seen in flocks
|
| gptkbp:research_interest |
ecological studies
behavioral studies |
| gptkbp:social_structure |
hierarchical in feeding groups
|
| gptkbp:subspecies |
gptkb:Chroicocephalus_philadelphia
|
| gptkbp:territorial_behavior |
during breeding season
|
| gptkbp:threats |
climate change
pollution habitat loss |
| gptkbp:weight |
150–300 g
|
| gptkbp:wingspan |
76–85 cm
|
| gptkbp:wintering_range |
coastal areas
southern United States and Mexico |